$ git clone -n https://src.fedoraproject.org/rpms/credentials-fetcher.git /var/lib/mock/f38-build-side-42-init-devel-1062004-29766/root/chroot_tmpdir/scmroot/credentials-fetcher
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1062004-29766/root/chroot_tmpdir/scmroot/credentials-fetcher'...
$ git fetch origin 1ca15f86cc78d06bc8fe6e52a5301a0c35246f76:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/credentials-fetcher
 * [new ref]         1ca15f86cc78d06bc8fe6e52a5301a0c35246f76 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ca15f8 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild