$ git clone -n https://src.fedoraproject.org/rpms/perl-Lingua-Flags.git /var/lib/mock/f45-build-24437-603/root/chroot_tmpdir/scmroot/perl-Lingua-Flags
Cloning into '/var/lib/mock/f45-build-24437-603/root/chroot_tmpdir/scmroot/perl-Lingua-Flags'...
$ git fetch origin 9d0425af79bf696612f50a159faea8c1e4c448b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Lingua-Flags
 * [new ref]         9d0425af79bf696612f50a159faea8c1e4c448b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d0425a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild