[tests] Nightwatch issues clicking context menu item

[kulmann]

PR #5725 introduces the context menu to the acceptance tests. First use cases are opening the sidebar in Details panel and opening the sidebar in Actions panel.

However, in some cases (100% reproducible) the buttons in the context menu are not found. Following the test runs in a VNC viewer I can see that the context menu is indeed open, but the buttons are in some steps found, in some steps not found.

A good example for a failing test is:
webUISharingInternalGroupsSharingIndicator/shareWithGroups.feature:136

It opens the right sidebar twice. Both times via the context menu Details button. The first time it works fine, the second time the button is not found although it's visible on the screen and the css selector works fine. I have no clue why this is happening. Help is much appreciated.

[individual-it]

seems to be solved by using xpath instead of CSS selector

[kulmann]

Yes, can confirm that using xpath solved the issue. I'm super confused by that. Might be a bug in nightwatch or selenium...