$ git clone -n https://src.fedoraproject.org/rpms/rust-atk-sys0.17.git /var/lib/mock/f39-build-1509804-35452/root/chroot_tmpdir/scmroot/rust-atk-sys0.17
Cloning into '/var/lib/mock/f39-build-1509804-35452/root/chroot_tmpdir/scmroot/rust-atk-sys0.17'...
$ git fetch origin 9577fe6e8491dd3fe0282318cdd3a2100f4c7c79:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-atk-sys0.17
 * [new ref]         9577fe6e8491dd3fe0282318cdd3a2100f4c7c79 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9577fe6 Initial import (atk-sys 0.17 compat package)