$ git clone -n https://src.fedoraproject.org/rpms/mailcommon.git /var/lib/mock/f41-build-712910-13041/root/chroot_tmpdir/scmroot/mailcommon
Cloning into '/var/lib/mock/f41-build-712910-13041/root/chroot_tmpdir/scmroot/mailcommon'...
$ git fetch origin 3c0a9b9f4ef114eb09e12beaef6cf61c1cb3d4ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mailcommon
 * [new ref]         3c0a9b9f4ef114eb09e12beaef6cf61c1cb3d4ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c0a9b9 24.05.0