$ git clone -n https://src.fedoraproject.org/rpms/rust-pangocairo.git /var/lib/mock/f40-build-2109044-50620/root/chroot_tmpdir/scmroot/rust-pangocairo
Cloning into '/var/lib/mock/f40-build-2109044-50620/root/chroot_tmpdir/scmroot/rust-pangocairo'...
$ git fetch origin cbc8006780353713453b5c7adbf9c5c0421538a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pangocairo
 * [new ref]         cbc8006780353713453b5c7adbf9c5c0421538a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cbc8006 Update to version 0.18.0; Fixes RHBZ#2224916