$ git clone -n https://src.fedoraproject.org/rpms/R-gmailr.git /var/lib/mock/f40-build-2229706-53170/root/chroot_tmpdir/scmroot/R-gmailr
Cloning into '/var/lib/mock/f40-build-2229706-53170/root/chroot_tmpdir/scmroot/R-gmailr'...
$ git fetch origin f31175ff5d902c29ee65589c4ee2b79a2eabe651:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-gmailr
 * [new ref]         f31175ff5d902c29ee65589c4ee2b79a2eabe651 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f31175f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild