$ git clone -n https://src.fedoraproject.org/rpms/R-promises.git /var/lib/mock/f40-build-752604-116812/root/chroot_tmpdir/scmroot/R-promises
Cloning into '/var/lib/mock/f40-build-752604-116812/root/chroot_tmpdir/scmroot/R-promises'...
$ git fetch origin a48b9177ca89c2ba5da2cd2e74964e65ca7978e2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-promises
 * [new ref]         a48b9177ca89c2ba5da2cd2e74964e65ca7978e2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a48b917 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild