Platform: Arch Linux x86_64
Compositor: Sway version 1.0-rc1-37-gf5190d1f (Feb 8 2019, branch 'master')
Version (wl-clipboard): Pacman says 1.0 but there's no --version flag available (?)

Not sure if this is the intended behaviour but when running wl-paste it opens a new terminal window very briefly and then pastes the contents of the wayland clipboard to the original window where the command was invoked.

This is quite problematic in scripts as it keeps opening new windows whenever wl-paste is invoked.