Excluding windows by name does not work

[w3333]

I added "^bitwarden" to the "exlude clipboard content from windows" list.
I cleared the clip list.

Now, if I copy a password from Bitwarden, it initially is not listed in the list of clips. But, when I go to another window, no matter where, and copy anything else by using ctrl-c, suddenly 2 entries appear: the new one I just copied AND the password I copied before.

This behaviour is reproducable. V 1.4.5 running on Linux Mint 20.3.