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Bug report: crashes when selecting from a menu of instructions
Initially problem was discovered when an instruction window appeared but there were no instructions in it. This doesn't seem to have happened before. In trying to resolve the issue I clicked on the drop down which had one item on it. Clicking off the drop down resulted in a crash that I have managed to replicate on 2 different instruction sets.
If it makes a difference all instructions in the program are not askable and they only appear as other messages are presented/user asked for input.
VirMst4.el attached from the first crash. The test crashes were very similar in content.
It should be fixed in the new 4.3.10.