General fix to Lexicon Edit Popup problems #619
Merged
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This is a general fix to problems with the Lexicon Edit Popup window, of which https://jira.sil.org/browse/LT-22352 is one instance (see in particular Bharanidharan's comment). The general problem is that the Lexicon Edit Popup window often violates the assumptions in the context menu commands and cause them to crash. In particular, there is an assumption that the Lexicon Edit pane is in the Lexicon frame and there are no other edit windows active at the same time. There are too many context menu commands in the Lexicon Edit pane to try to fix them all. So I disabled all of them. If the user tries to use a context menu, they get the error "Context menus are disabled in popup windows.".
This change is