$ git clone -n https://src.fedoraproject.org/rpms/dogtag-pki.git /var/lib/mock/f38-build-side-42-init-devel-631809-26380/root/chroot_tmpdir/scmroot/dogtag-pki
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-631809-26380/root/chroot_tmpdir/scmroot/dogtag-pki'...
$ git fetch origin ce7a3d0d5daab46755606531e2c9fdfc944cb32c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dogtag-pki
 * [new ref]         ce7a3d0d5daab46755606531e2c9fdfc944cb32c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce7a3d0 Rebase to PKI 11.3.1