$ git clone -n https://src.fedoraproject.org/rpms/docbook5-style-xsl.git /var/lib/mock/f45-build-7662-368/root/chroot_tmpdir/scmroot/docbook5-style-xsl
Cloning into '/var/lib/mock/f45-build-7662-368/root/chroot_tmpdir/scmroot/docbook5-style-xsl'...
$ git fetch origin dddd2e0a178f4df8482561ce58638222c35a4af1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/docbook5-style-xsl
 * [new ref]         dddd2e0a178f4df8482561ce58638222c35a4af1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dddd2e0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild