$ git clone -n https://src.fedoraproject.org/rpms/umr.git /var/lib/mock/f40-build-747982-113585/root/chroot_tmpdir/scmroot/umr
Cloning into '/var/lib/mock/f40-build-747982-113585/root/chroot_tmpdir/scmroot/umr'...
$ git fetch origin 5dcd764409ee257ac406ea741523f7734e1d16ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/umr
 * [new ref]         5dcd764409ee257ac406ea741523f7734e1d16ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5dcd764 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild