$ git clone -n https://src.fedoraproject.org/rpms/rust-pangocairo-sys0.20.git /var/lib/mock/f45-build-35448-695/root/chroot_tmpdir/scmroot/rust-pangocairo-sys0.20
Cloning into '/var/lib/mock/f45-build-35448-695/root/chroot_tmpdir/scmroot/rust-pangocairo-sys0.20'...
$ git fetch origin be8c1b9a9fba6caa1f0b041fdc6fd3088fd071f0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pangocairo-sys0.20
 * [new ref]         be8c1b9a9fba6caa1f0b041fdc6fd3088fd071f0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be8c1b9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild