crashtesting: invalid iterator on load of forum-de-1233.odt docx export

although the actual order doesn't change there is a Delete/Insert of
the object in case the order should change.

::Insert will check if sorted and resort if not anyway, so presumably
if we just skip the middle-men and resort here if we need to then that
is equivalent, but without the invalidation for the already sorted case.

 #0  SwSortedObjs::Remove (this=0x510ed40, _rAnchoredObj=...) at core/sw/source/core/layout/sortedobjs.cxx:243
 #1  0x00007fffce0af130 in SwSortedObjs::Update (this=0x510ed40, _rAnchoredObj=...) at core/sw/source/core/layout/sortedobjs.cxx:282
 #2  0x00007fffcdf32c40 in SwAnchoredObject::UpdateObjInSortedList (this=0x51123c0) at core/sw/source/core/layout/anchoredobject.cxx:661
 #3  0x00007fffcdf8fc38 in SwFlyFrame::SwClientNotify (this=0x5112260, rMod=..., rHint=...) at core/sw/source/core/layout/fly.cxx:859
 #4  0x00007fffcdf9d1bf in SwFlyAtContentFrame::SwClientNotify (this=0x5112260, rMod=..., rHint=...) at core/sw/source/core/layout/flycnt.cxx:112
 #5  0x00007fffcd65bca8 in SwModify::CallSwClientNotify (this=0x4e68da0, rHint=...) at core/sw/source/core/attr/calbck.cxx:311
 #6  0x00007fffcd65bd71 in sw::BroadcastingModify::CallSwClientNotify (this=0x4e68da0, rHint=...) at core/sw/source/core/attr/calbck.cxx:316
 #7  0x00007fffcd65b42f in SwModify::SwClientNotify (this=0x4e68da0, rHint=...) at core/sw/source/core/attr/calbck.cxx:302
 #8  0x00007fffcd66771b in SwFormat::SwClientNotify (this=0x4e68da0, rHint=...) at core/sw/source/core/attr/format.cxx:300
 #9  0x00007fffcdf4448a in SwFrameFormat::SwClientNotify (this=0x4e68da0, rMod=..., rHint=...) at core/sw/source/core/layout/atrfrm.cxx:2843
 #10 0x00007fffcd65be1e in sw::ClientNotifyAttrChg (rModify=..., aSet=..., aOld=..., aNew=...) at core/sw/source/core/attr/calbck.cxx:325
 #11 0x00007fffcd66948e in SwFormat::SetFormatAttr (this=0x4e68da0, rSet=SfxItemSet of pool 0x1bcebe0 with parent 0x4e68e68 and Which ranges: [(88, 141), (159, 159), (1014, 1034)] = {...})
     at core/sw/source/core/attr/format.cxx:597
 #12 0x00007fffce649a2c in SwXFrame::setPropertyValue (this=0x5e47b90, rPropertyName="Size", _rValue=uno::Any("com.sun.star.awt.Size": ...))
     at core/sw/source/core/unocore/unoframe.cxx:1867
 #13 0x00007fffcdc4d7ea in SwTextBoxHelper::syncProperty (pShape=0x4dce770, nWID=89, nMemberID=0 '\000', rValue=uno::Any("com.sun.star.awt.Size": ...), pObj=0x0)
     at core/sw/source/core/doc/textboxhelper.cxx:995
 #14 0x00007fffcdf2e2d7 in SwAnchoredDrawObject::GetObjBoundRect (this=0x4e69dd0) at core/sw/source/core/layout/anchoreddrawobject.cxx:757
 #15 0x00007fffcdf320ca in SwAnchoredObject::GetObjRectWithSpaces (this=0x4e69dd0) at core/sw/source/core/layout/anchoredobject.cxx:575
 #16 0x00007fffcdf31eaa in SwAnchoredObject::InvalidateObjPosForConsiderWrapInfluence (this=0x4e69dd0) at core/sw/source/core/layout/anchoredobject.cxx:400
 #17 0x00007fffcdf32be5 in SwAnchoredObject::UpdateObjInSortedList (this=0x510e530) at core/sw/source/core/layout/anchoredobject.cxx:654
 #18 0x00007fffcdf8fc38 in SwFlyFrame::SwClientNotify (this=0x510e3d0, rMod=..., rHint=...) at core/sw/source/core/layout/fly.cxx:859
 #19 0x00007fffcdf9d1bf in SwFlyAtContentFrame::SwClientNotify (this=0x510e3d0, rMod=..., rHint=...) at core/sw/source/core/layout/flycnt.cxx:112
 #20 0x00007fffcd65bca8 in SwModify::CallSwClientNotify (this=0x4e364a0, rHint=...) at core/sw/source/core/attr/calbck.cxx:311
 #21 0x00007fffcd65bd71 in sw::BroadcastingModify::CallSwClientNotify (this=0x4e364a0, rHint=...) at core/sw/source/core/attr/calbck.cxx:316
 #22 0x00007fffcd65b42f in SwModify::SwClientNotify (this=0x4e364a0, rHint=...) at core/sw/source/core/attr/calbck.cxx:302
 #23 0x00007fffcd66771b in SwFormat::SwClientNotify (this=0x4e364a0, rHint=...) at core/sw/source/core/attr/format.cxx:300
 #24 0x00007fffcdf4448a in SwFrameFormat::SwClientNotify (this=0x4e364a0, rMod=..., rHint=...) at core/sw/source/core/layout/atrfrm.cxx:2843
 #25 0x00007fffcd65be1e in sw::ClientNotifyAttrChg (rModify=..., aSet=..., aOld=..., aNew=...) at core/sw/source/core/attr/calbck.cxx:325
 #26 0x00007fffcd66948e in SwFormat::SetFormatAttr (this=0x4e364a0, rSet=SfxItemSet of pool 0x1bcebe0 with parent 0x4e36568 and Which ranges: [(88, 141), (159, 159), (1014, 1034)] = {...})
     at core/sw/source/core/attr/format.cxx:597
 #27 0x00007fffce649a2c in SwXFrame::setPropertyValue (this=0x4a86e10, rPropertyName="Size", _rValue=uno::Any("com.sun.star.awt.Size": ...))
     at core/sw/source/core/unocore/unoframe.cxx:1867
 #28 0x00007fffcdc4d7ea in SwTextBoxHelper::syncProperty (pShape=0x4dc65f0, nWID=89, nMemberID=0 '\000', rValue=uno::Any("com.sun.star.awt.Size": ...), pObj=0x0)
     at core/sw/source/core/doc/textboxhelper.cxx:995
 #29 0x00007fffcdf2e2d7 in SwAnchoredDrawObject::GetObjBoundRect (this=0x4e3a0d0) at core/sw/source/core/layout/anchoreddrawobject.cxx:757
 #30 0x00007fffcdf320ca in SwAnchoredObject::GetObjRectWithSpaces (this=0x4e3a0d0) at core/sw/source/core/layout/anchoredobject.cxx:575
 #31 0x00007fffcdf815b3 in (anonymous namespace)::IsNextContentFullPage (rThis=...) at core/sw/source/core/layout/flowfrm.cxx:217
 #32 0x00007fffcdf81002 in SwFlowFrame::IsKeep (this=0x4e5a630, rKeep=..., rBreak=..., bCheckIfLastRowShouldKeep=false) at core/sw/source/core/layout/flowfrm.cxx:259

Change-Id: If2191e8b99d1b0347bab54a704013ce0a9a19410
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/176992
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <[email protected]>
(cherry picked from commit f2cf4d9)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/177030
Reviewed-by: Michael Stahl <[email protected]>

sw/source/core/layout/sortedobjs.cxx

@@ -275,8 +275,10 @@ void SwSortedObjs::Update( SwAnchoredObject& _rAnchoredObj )
         return;
     }
 
-    Remove( _rAnchoredObj );
-    Insert( _rAnchoredObj );
+    if (is_sorted())
+        return;
+
+    UpdateAll();
 }
 
 void SwSortedObjs::UpdateAll()