Fix #6279: prevent sending keymap or repeat info events by keyboards without keyboard capability #6697
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Describe your PR, what does it fix/add?
This PR fixes a part of #6279, crashing of some programs.
Since this bug is caused by keyboards without keyboard capability sending keymap events or repeat info events, I have made changes to prevent it.
Is there anything you want to mention? (unchecked code, possible bugs, found problems, breaking compatibility, etc.)
It may be an issue that such keyboards exist.
Is it ready for merging, or does it need work?
It is ready.