1.5.0svn r18749: Cannot type in normal window

[Bennett Helm]

As the subject says: I cannot type in a document on Mac. Command keys  
work, but normal typing fails. Running with lyx -dbg key shows that  
key presses are properly registered. Moreover, attempting to type  
results in LyX registering the file as needing to be saved. But no  
added text shows up in the LyX window, in typeset output, or in the  
file once saved, closed, and reopened.

This is bug 3857.
<http://bugzilla.lyx.org/show_bug.cgi?id=3857>

Bennett