$ git clone -n https://src.fedoraproject.org/rpms/python-stdiomask.git /var/lib/mock/f39-build-1426543-31599/root/chroot_tmpdir/scmroot/python-stdiomask
Cloning into '/var/lib/mock/f39-build-1426543-31599/root/chroot_tmpdir/scmroot/python-stdiomask'...
$ git fetch origin 7aa1998d4c0b1d5947d46a43d979a11a02434d86:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-stdiomask
 * [new ref]         7aa1998d4c0b1d5947d46a43d979a11a02434d86 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7aa1998 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild