$ git clone -n https://src.fedoraproject.org/rpms/microdnf.git /var/lib/mock/f39-build-1532885-36226/root/chroot_tmpdir/scmroot/microdnf
Cloning into '/var/lib/mock/f39-build-1532885-36226/root/chroot_tmpdir/scmroot/microdnf'...
$ git fetch origin 17bb447617ac0cea9e1df413e7e81cb30b9f475b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/microdnf
 * [new ref]         17bb447617ac0cea9e1df413e7e81cb30b9f475b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17bb447 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild