$ git clone -n https://src.fedoraproject.org/rpms/rust-smithay-client-toolkit.git /var/lib/mock/f39-build-1564545-37508/root/chroot_tmpdir/scmroot/rust-smithay-client-toolkit
Cloning into '/var/lib/mock/f39-build-1564545-37508/root/chroot_tmpdir/scmroot/rust-smithay-client-toolkit'...
$ git fetch origin 9b1ea6789f0d21d6c80011b9058db5967be20991:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-smithay-client-toolkit
 * [new ref]         9b1ea6789f0d21d6c80011b9058db5967be20991 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b1ea67 Update to 0.16.1