$ git clone -n https://src.fedoraproject.org/rpms/perl-Text-Layout.git /var/lib/mock/f39-build-1916357-42912/root/chroot_tmpdir/scmroot/perl-Text-Layout
Cloning into '/var/lib/mock/f39-build-1916357-42912/root/chroot_tmpdir/scmroot/perl-Text-Layout'...
$ git fetch origin 3d76690d7dc96e54abad90de0162fde53c137fa3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Text-Layout
 * [new ref]         3d76690d7dc96e54abad90de0162fde53c137fa3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d76690 Upgrade to upstream 0.032.