Undo/Redo not working with VERY LONG lines

[Hexaae]

Undo/Redo don't seem to be working after I modify VERY LONG lines, like in file below when you edit first long line: LangSource_I2Languages1qmIr2L9HoeJt8Roz6kDD_dLVyDEbg8iu_9NbxSgjKKU_Italian.loc.txt

Expected behaviour: As usual any modification should unlock Undo/Redo toolbar buttons, as well as CTRL-Z, CTRL-SHIFT-Z, but nothing happens after you modify the first (huge) line. Even waiting many seconds, still nothing happens.

[Alexey-T]

this is optional. look into our Plugins / Options Editor plugin and enter 'undo' into filter field:

[Hexaae]

Thanks.