$ git clone -n https://src.fedoraproject.org/rpms/bash-completion-extras.git /var/lib/mock/f38-build-side-42-init-devel-594748-26158/root/chroot_tmpdir/scmroot/bash-completion-extras
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-594748-26158/root/chroot_tmpdir/scmroot/bash-completion-extras'...
$ git fetch origin 3adac4e0bef42e80c2e44926db852e6682a595e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bash-completion-extras
 * [new ref]         3adac4e0bef42e80c2e44926db852e6682a595e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3adac4e Initial setup of the repo