$ git clone -n https://src.fedoraproject.org/rpms/rust-ctor0.1.git /var/lib/mock/f38-build-side-42-init-devel-830069-28366/root/chroot_tmpdir/scmroot/rust-ctor0.1
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-830069-28366/root/chroot_tmpdir/scmroot/rust-ctor0.1'...
$ git fetch origin 55ee76246874af48cbd278de6d61d04eba9db9f0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ctor0.1
 * [new ref]         55ee76246874af48cbd278de6d61d04eba9db9f0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 55ee762 Initial import (ctor 0.1 compat package)