$ git clone -n https://src.fedoraproject.org/rpms/docbook-style-xsl.git /var/lib/mock/f40-build-1994690-43823/root/chroot_tmpdir/scmroot/docbook-style-xsl
Cloning into '/var/lib/mock/f40-build-1994690-43823/root/chroot_tmpdir/scmroot/docbook-style-xsl'...
$ git fetch origin d8fdffdc570cb9a7a9fc5f59fc4587eebd0870e8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/docbook-style-xsl
 * [new ref]         d8fdffdc570cb9a7a9fc5f59fc4587eebd0870e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d8fdffd Update license tag to the SPDX format (LicenseRef-DMIT)