$ git clone -n https://src.fedoraproject.org/rpms/plasmatube.git /var/lib/mock/f42-build-side-1-3506359-45996/root/chroot_tmpdir/scmroot/plasmatube
Cloning into '/var/lib/mock/f42-build-side-1-3506359-45996/root/chroot_tmpdir/scmroot/plasmatube'...
$ git fetch origin 3cc6b0e34a55195841be04cc61d52f0aed6d7806:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasmatube
 * [new ref]         3cc6b0e34a55195841be04cc61d52f0aed6d7806 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3cc6b0e 25.04.0