$ git clone -n https://src.fedoraproject.org/rpms/plymouth-theme-breeze.git /var/lib/mock/f40-build-2113194-50675/root/chroot_tmpdir/scmroot/plymouth-theme-breeze
Cloning into '/var/lib/mock/f40-build-2113194-50675/root/chroot_tmpdir/scmroot/plymouth-theme-breeze'...
$ git fetch origin c51cc4b502cff23ca197ee7d7efa3de4b048d422:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plymouth-theme-breeze
 * [new ref]         c51cc4b502cff23ca197ee7d7efa3de4b048d422 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c51cc4b 5.91.0