RFC: Toggled settings in netrw windows will be reset on FocusGained

[kiryph]

netrw manages vim settings for netrw windows in a separate variable called g:netrw_bufsettings with the default value of noma nomod nonu nowrap ro nobl. If you are not familiar with all the abbreviations, I give here the unabbreviated versions

• noma = nomodifiable
• nomod = nomodified
• nonu = nonumber
• nowrap (not abbreviated)
• ro = readonly
• nobl = nobuflisted

The two settings number and wrap can conveniently be toggled by unimpaired with yon and yow.

Another netrw variable is g:netrw_cursor which contains the settings for cursorline and cursorcolumn which also can be changed by unimpaired with yo-, yo| and yo+.

I do not mind that netrw can have different default settings, but I like to use the unimpaired toggles and do not want to lose my current setting on FocusGained which right now happens.

I am not sure how to solve this:

Either netrw does not enforce their settings on FocusGained or unimpaired adjusts the netrw variables if one presses a command in a netrw window as well. BTW they are all (number, wrap, cursorline, cursorcolumn) local to window.