$ git clone -n https://src.fedoraproject.org/rpms/vim-command-t.git /var/lib/mock/f41-build-1033756-18593/root/chroot_tmpdir/scmroot/vim-command-t
Cloning into '/var/lib/mock/f41-build-1033756-18593/root/chroot_tmpdir/scmroot/vim-command-t'...
$ git fetch origin fb30028a99c882574c5585ae13c6a9efaa5c0ab5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vim-command-t
 * [new ref]         fb30028a99c882574c5585ae13c6a9efaa5c0ab5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fb30028 Eliminate use of obsolete %patchN syntax (#2283636)