GtkSourceView fails to load markdown lang
When starting Fractal-next the following warning is shown
(fractal:2): GtkSourceView-WARNING **: 16:13:18.470: Failed to load '/app/share/gtksourceview-5/language-specs/markdown.lang': In file '/app/share/gtksourceview-5/language-specs/html.lang' referenced from '/app/share/gtksourceview-5/language-specs/markdown.lang': range out of order in character class: offset 47 of pattern (?i-x)((?:(?i-x)[^\x00\t\n\f\r "'/<=>\x{007F}-\x{009F}\x{FDD0}-\x{FDEF}\x{FFFE}\x{FFFF}\x{1FFFE}\x{1FFFF}\x{2FFFE}\x{2FFFF}\x{3FFFE}\x{3FFFF}\x{4FFFE}\x{4FFFF}\x{5FFFE}\x{5FFFF}\x{6FFFE}\x{6FFFF}\x{7FFFE}\x{7FFFF}\x{8FFFE}\x{8FFFF}\x{9FFFE}\x{9FFFF}\x{AFFFE}\x{AFFFF}\x{BFFFE}\x{BFFFF}\x{CFFFE}\x{CFFFF}\x{DFFFE}\x{DFFFF}\x{EFFFE}\x{EFFFF}\x{FFFFE}\x{FFFFF}\x{10FFFE}\x{10FFFF}]+)\s*=\s*)(\")