Action of "Ctrl + c"?

In “Actions->Copy” hotkey is defined as “Ctrl-c”.
I understood it as windows general copy shortcut, but not.

When there are no text selected, the key is ignored.
When there are any selected text, it hides toolbar and nothing happened.

I am using 5.00.2177 in Windows 10.


The selected search result file in Listary is copied to clipboard when you press Ctrl+C.