$ git clone -n https://src.fedoraproject.org/rpms/rust-wayland-protocols-plasma.git /var/lib/mock/f42-bootstrap-3533844-46421/root/chroot_tmpdir/scmroot/rust-wayland-protocols-plasma
Cloning into '/var/lib/mock/f42-bootstrap-3533844-46421/root/chroot_tmpdir/scmroot/rust-wayland-protocols-plasma'...
$ git fetch origin a7706d30047b13d0363738b938d3c953ef8b9eee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-wayland-protocols-plasma
 * [new ref]         a7706d30047b13d0363738b938d3c953ef8b9eee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7706d3 Update to version 0.3.8; Fixes RHBZ#2362777