Pressing and holding "e" over end of word that ends in a ":" What steps will reproduce the problem?
0. Using RubyMine
1. Use IdeaVim
2. Hold down "e" to auto-repeat end of word
3. Hit a : at end of word
4. See picture! I can pick lots of strange "e" characters.

What is the expected result?
This should not happen. How to turn this off?

Cross reported here: https://youtrack.jetbrains.com/issue/RUBY-16003

However, I think this is a Mac issue, as this just happened after the recent upgrade.
Aside from the author of the software addressing this, the following command turns off the press and hold, bring up the e's:

defaults write -g ApplePressAndHoldEnabled -bool false