$ git clone -n https://src.fedoraproject.org/rpms/GAPDoc.git /var/lib/mock/f38-build-side-42-init-devel-887859-28503/root/chroot_tmpdir/scmroot/GAPDoc
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-887859-28503/root/chroot_tmpdir/scmroot/GAPDoc'...
$ git fetch origin d8660142e659a538d3bc5fda5b65b118ce318c91:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/GAPDoc
 * [new ref]         d8660142e659a538d3bc5fda5b65b118ce318c91 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d866014 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild