$ git clone -n https://src.fedoraproject.org/rpms/dummy-test-package-crested.git /var/lib/mock/f39-build-2348511-60143/root/chroot_tmpdir/scmroot/dummy-test-package-crested
Cloning into '/var/lib/mock/f39-build-2348511-60143/root/chroot_tmpdir/scmroot/dummy-test-package-crested'...
$ git fetch origin 2ab23475000ca9b4a010db1ac40f6a8c2320de33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dummy-test-package-crested
 * [new ref]         2ab23475000ca9b4a010db1ac40f6a8c2320de33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ab2347 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild