$ git clone -n http://git.inferitos.ru/rpms/rust-serde_bytes.git /var/lib/mock/inferit-9-epel-build-32973-60897/root/chroot_tmpdir/scmroot/rust-serde_bytes
Cloning into '/var/lib/mock/inferit-9-epel-build-32973-60897/root/chroot_tmpdir/scmroot/rust-serde_bytes'...
$ git fetch origin ec46aeb:KOJI_FETCH_HEAD
fatal: couldn't find remote ref ec46aeb
$ git reset --hard ec46aeb
fatal: ambiguous argument 'ec46aeb': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'