$ git clone -n https://src.fedoraproject.org/rpms/rust-sval_dynamic.git /var/lib/mock/f38-build-side-42-init-devel-1131362-30333/root/chroot_tmpdir/scmroot/rust-sval_dynamic
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1131362-30333/root/chroot_tmpdir/scmroot/rust-sval_dynamic'...
$ git fetch origin a2076d3c90e205180bc72005d16093ce9bdcb2f9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sval_dynamic
 * [new ref]         a2076d3c90e205180bc72005d16093ce9bdcb2f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2076d3 Initial import (#2217026)