[5.4] roll back to a given transaction level (savepoint)#15876

Merged

taylorotwell merged 1 commit intolaravel:masterfrom halaei:rollback-to-level

Oct 13, 2016

+26-5

Commits on Oct 12, 2016

roll back to a given transaction level (savepoint). Dont fire event on redundant rollBack()
halaei
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