$ git clone -n https://src.fedoraproject.org/rpms/R-import.git /var/lib/mock/f40-build-2189459-51418/root/chroot_tmpdir/scmroot/R-import
Cloning into '/var/lib/mock/f40-build-2189459-51418/root/chroot_tmpdir/scmroot/R-import'...
$ git fetch origin ccbf853c5b01af4721d78adb6c7ac341da825f8c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-import
 * [new ref]         ccbf853c5b01af4721d78adb6c7ac341da825f8c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ccbf853 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild