Vim 9.1 on Manjaro Linux (vim -f -u .vimrc-core)
quick-scope installed using Plug
Added "let g:qs_highlight_on_keys = ['f', 'F', 't', 'T']" to .vimrc-core
Characters are highlighted, but when cursor is moved to a new line the following error occurs:
Error detected while processing function quick_scope#HighlightLineDelayCallback[2]..quick_scope
#HighlightLine[12]..49_get_highlight_patterns[130]..49_save_chars_with_secondary_high
lights:
line 6:
E121: Undefined variable: s:chars_s