$ git clone -n https://src.fedoraproject.org/rpms/rust-pango-sys.git /var/lib/mock/f45-build-43707-805/root/chroot_tmpdir/scmroot/rust-pango-sys
Cloning into '/var/lib/mock/f45-build-43707-805/root/chroot_tmpdir/scmroot/rust-pango-sys'...
$ git fetch origin f51331adc1e00aed91da635071a554dc3ae8fd0b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pango-sys
 * [new ref]         f51331adc1e00aed91da635071a554dc3ae8fd0b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f51331a Update to version 0.22.9; Fixes RHBZ#2526056