TextView crashes when copying/pasting from another TextView buffer that contains paintable elements

Platform
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1

I’m trying to copy some text from read-only TextView that contain paintable elements, e.g.:

buffer.insert_paintable(&mut buffer.end_iter(), &icon.quote);

After pasting it into another, editable TextView (using hotkeys), application get crash.
What could it be?

I’m using also following extensions, maybe that’s related:

use libspelling::{Checker, TextBufferAdapter};
use sourceview::Buffer;

[dependencies.adw]
package = "libadwaita"
features = ["v1_5"]

[dependencies.gtk]
package = "gtk4"
features = ["gnome_46"]

Or I forgot to apply some Glib filter?

2

Hi,
Which exact versions of glib / gtk / gtksourceview / libspelling?
Which distribution ? display server?

Can you provide a backtrace?