$ git clone -n https://src.fedoraproject.org/rpms/rust-pangocairo0.17.git /var/lib/mock/f40-build-2109045-50620/root/chroot_tmpdir/scmroot/rust-pangocairo0.17
Cloning into '/var/lib/mock/f40-build-2109045-50620/root/chroot_tmpdir/scmroot/rust-pangocairo0.17'...
$ git fetch origin a19ef97d88085ee53f5cab6073d76f098f8c6858:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pangocairo0.17
 * [new ref]         a19ef97d88085ee53f5cab6073d76f098f8c6858 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a19ef97 Initial import (pangocairo 0.17 compat package)