copy-on-select = clipboard causes "Copied to clipboard" spam on GTK

[dumbasPL]

host: Arch Linux, GNOME 47 on Wayland
version: 1.0.2-main+a3837a1e (built from source)
simplified config (without theming):

shell-integration-features = no-cursor
copy-on-select = clipboard
scrollback-limit = 134217728
adw-toolbar-style = raised-border
auto-update = off
term = xterm-256color

steps to reproduce:

1. enable copy-on-select = clipboard
2. select something by clicking and dragging the mouse
3. observe Copied to clipboard spam at the bottom

expected behavior:
Copied to clipboard shows once the selection has ended (when the mouse button is lifted)

[JakeWharton]

Dupe of Related to #4750

[dumbasPL]

Dupe of #4750

Not relay.

The copy should likely only happen on mouse release.

In my opinion, the copy behavior is working as expected. Good clipboard history managers can deal with this since (at least on Linux) this is how other terminals do it as well. I'm only concerned with the toast spam.

[JakeWharton]

Indeed! Sorry about that. I was juggling three discussions and meant to only say it was related, as there was a third closed discussion where someone was talking about performing the action only on release.

[mitchellh]

Approved #4800