So after loading resource pack that changes font and uses different glyph size than current spacing, just breaks, on first load it is. After entering/exiting a world or game than initializes second load of this resource pack, spacing fixes. 

This bug happens after enabling or disabling a font resource pack. So, for example, if I enable my font resource pack, update spacing, and disable it, spacing of this resource pack will stay until I enter/exit a world or the game 

The resource pack that I used and screenshots of the bug are attached to this post.

This how it should look like: