$ git clone -n https://src.fedoraproject.org/rpms/emacs-transient.git /var/lib/mock/f41-build-side-1-2811229-32927/root/chroot_tmpdir/scmroot/emacs-transient
Cloning into '/var/lib/mock/f41-build-side-1-2811229-32927/root/chroot_tmpdir/scmroot/emacs-transient'...
$ git fetch origin 57bd103486e78bcc26c6099e546ad3bf4d9f7f40:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-transient
 * [new ref]         57bd103486e78bcc26c6099e546ad3bf4d9f7f40 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 57bd103 transient has been integrated into emacs