$ git clone -n https://src.fedoraproject.org/rpms/pcaudiolib.git /var/lib/mock/f45-build-21462-584/root/chroot_tmpdir/scmroot/pcaudiolib
Cloning into '/var/lib/mock/f45-build-21462-584/root/chroot_tmpdir/scmroot/pcaudiolib'...
$ git fetch origin b9cd191348a17c57752e5c71ccd384db4cd1d4ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pcaudiolib
 * [new ref]         b9cd191348a17c57752e5c71ccd384db4cd1d4ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9cd191 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild