$ git clone -n https://src.fedoraproject.org/rpms/rust-pangocairo0.17.git /var/lib/mock/f41-build-side-1-3134866-39763/root/chroot_tmpdir/scmroot/rust-pangocairo0.17
Cloning into '/var/lib/mock/f41-build-side-1-3134866-39763/root/chroot_tmpdir/scmroot/rust-pangocairo0.17'...
$ git fetch origin 5ff7c793bfe78e95c89523f82df372eeea7dc27e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pangocairo0.17
 * [new ref]         5ff7c793bfe78e95c89523f82df372eeea7dc27e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ff7c79 compat package no longer needed