$ git clone -n https://src.fedoraproject.org/rpms/clang16.git /var/lib/mock/f40-build-805447-144785/root/chroot_tmpdir/scmroot/clang16
Cloning into '/var/lib/mock/f40-build-805447-144785/root/chroot_tmpdir/scmroot/clang16'...
$ git fetch origin 10addbcf9dc3388e8c42209e91d91199937a2b48:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/clang16
 * [new ref]         10addbcf9dc3388e8c42209e91d91199937a2b48 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10addbc Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild