Using Tab character as an indent aligns at the wrong char.

[voronind-com]

Screencast from 2023-12-05 15-50-48.webm

If you add tab as an indent, plugin aligns at the character after the one you specify.

[voronind-com]

I'm trying to create a pull request. I could narrow down the issue to the line 222 (in my case, but this should apply to other modes as well): I assume that the error comes from the fact that vim.fn.strdisplaywidth returns wrong value when tab is present, as tab is a stretched character.

edit: I'm unsure now.