$ git clone -n https://src.fedoraproject.org/rpms/gnome-terminal.git /var/lib/mock/f40-build-1931843-25123/root/chroot_tmpdir/scmroot/gnome-terminal
Cloning into '/var/lib/mock/f40-build-1931843-25123/root/chroot_tmpdir/scmroot/gnome-terminal'...
$ git fetch origin 56953b1375b00903781b57581e2bfc77c0a67dd5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-terminal
 * [new ref]         56953b1375b00903781b57581e2bfc77c0a67dd5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 56953b1 Update gnome-terminal patches to track Fedora VTE patches