$ git clone -n https://src.fedoraproject.org/rpms/rust-itoap.git /var/lib/mock/f38-build-side-42-init-devel-688827-26788/root/chroot_tmpdir/scmroot/rust-itoap
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-688827-26788/root/chroot_tmpdir/scmroot/rust-itoap'...
$ git fetch origin 6a4d40f95008948b4abe5b13bdc793ffb0c75b91:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-itoap
 * [new ref]         6a4d40f95008948b4abe5b13bdc793ffb0c75b91 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a4d40f Exclude unnecessary dev files from the package