$ git clone -n https://src.fedoraproject.org/rpms/rust-atk-sys.git /var/lib/mock/f38-build-side-42-init-devel-1395257-31050/root/chroot_tmpdir/scmroot/rust-atk-sys
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1395257-31050/root/chroot_tmpdir/scmroot/rust-atk-sys'...
$ git fetch origin 56b003088666fce66050b531776103a8c490577e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-atk-sys
 * [new ref]         56b003088666fce66050b531776103a8c490577e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 56b0030 Update to version 0.18.0; Fixes RHBZ#2231725