Clipcat is copying on select

[ArttX]

When selecting text in any place, clipcat saves it to history. Without pressing Ctrl+C. So when I am selecting text like: No one assigned, my history looks like:

No one assigned
o one assigned
 one assigned
one assigned
ne assigned
e assigned
...

This also happens, when I select cells in Libre Calc. It copies each selected cell as an image. It is bug or something is not correctly set upped on my system?