If one enters a long line into a GtkTextView, etc. the text will become invisible at some point. The same happens when calling cairo_show_text with a long string. The text disappears as soon as it reaches a width of 0x2000px.
Created attachment 3440 [details] code that triggers this Example function that triggers this.
Between glyph clipping and the xlib backend falling back in the case of glyphs it can't handle (e.g. range overflow) this is now fixed.
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