Syntax editor does not retain configuration changes

[cnewtonne]

I'm not sure if this feature is by design or it is a bug ...

Highlighting a line in info item 'plain text 1' or even toggling a bookmark, causes to insert/highlight in all other info items of plain text type.

In the image below, highlighting line 2 in info item 1 did the same in info item 2.

Are these highlights/bookmarks not specific to a single info item?

Thanks