$ git clone -n https://src.fedoraproject.org/rpms/R-gmailr.git /var/lib/mock/f38-build-side-42-init-devel-850760-28425/root/chroot_tmpdir/scmroot/R-gmailr
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-850760-28425/root/chroot_tmpdir/scmroot/R-gmailr'...
$ git fetch origin fba7f5218298cb81d49e60a88476ed741a0574a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-gmailr
 * [new ref]         fba7f5218298cb81d49e60a88476ed741a0574a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fba7f52 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild