$ git clone -n https://src.fedoraproject.org/rpms/R-oskeyring.git /var/lib/mock/f40-build-2107550-50596/root/chroot_tmpdir/scmroot/R-oskeyring
Cloning into '/var/lib/mock/f40-build-2107550-50596/root/chroot_tmpdir/scmroot/R-oskeyring'...
$ git fetch origin d964b99903273975e0a853b7602eb1b3e979c53c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-oskeyring
 * [new ref]         d964b99903273975e0a853b7602eb1b3e979c53c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d964b99 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild