Paste does not seem to work on OpenBSD

[vl-ms]

The issue is very similar to this one. My default editor (vis) is envoked when I do Mod+e but when I try to paste with Mod+p nothing happens. Tested on xterm and st, with OpenBSD vi and vis editors, in cwm window manager. I tried invoking the terminal manually from another terminal and from the cwm command menu, as is suggested by the author of the previous issue, unsuccessfully.