$ git clone -n https://src.fedoraproject.org/rpms/rust-gweather-sys.git /var/lib/mock/f39-build-1572674-37789/root/chroot_tmpdir/scmroot/rust-gweather-sys
Cloning into '/var/lib/mock/f39-build-1572674-37789/root/chroot_tmpdir/scmroot/rust-gweather-sys'...
$ git fetch origin 3587d64df47d19e1751026b127dcd755b5f8a190:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gweather-sys
 * [new ref]         3587d64df47d19e1751026b127dcd755b5f8a190 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3587d64 Update to 4.3.0