$ git clone -n https://src.fedoraproject.org/rpms/rust-cairo-sys-rs.git /var/lib/mock/f40-build-2053882-49096/root/chroot_tmpdir/scmroot/rust-cairo-sys-rs
Cloning into '/var/lib/mock/f40-build-2053882-49096/root/chroot_tmpdir/scmroot/rust-cairo-sys-rs'...
$ git fetch origin 0bbe392a3221f6709c75bdd04cf2faed5e7cb310:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cairo-sys-rs
 * [new ref]         0bbe392a3221f6709c75bdd04cf2faed5e7cb310 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0bbe392 Update to version 0.18.2; Fixes RHBZ#2239027