Editor: Comment line(s) not working

[osdf]

A line (or a marked block) should be commented with Editor: Comment line(s). This seems not to work.

[rschroll]

I'm seeing this as well, but it seems to happen whether or not litex is
loaded. I suspect that this is a problem with CodeMirror and/or
LightTable.

Let's leave the bug open for now; if it's not going to get fixed in
LightTable, we may be able to fix it in litex.

[osdf]

It works for files ending in *.cljs, *.py and *.cpp.

[rschroll]

It looks line lineComment isn't set in the tex mode:
https://github.com/LightTable/LightTable/blob/master/deploy/core/node_modules/codemirror/modes/stex.js

If you want to submit a bug or pull request to Light Table, go right
ahead. Otherwise, I'll try to get to it in a day or so.