$ git clone -n https://src.fedoraproject.org/rpms/plasma-workspace.git /var/lib/mock/f42-build-side-1-3579131-46815/root/chroot_tmpdir/scmroot/plasma-workspace
Cloning into '/var/lib/mock/f42-build-side-1-3579131-46815/root/chroot_tmpdir/scmroot/plasma-workspace'...
$ git fetch origin 36c500230d304de5576ce6a14f036ae16b7bbbff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-workspace
 * [new ref]         36c500230d304de5576ce6a14f036ae16b7bbbff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 36c5002 Merge plasma-workspace-wayland subpackage into main package