Multi-image filesets cannot be {% ifequal action 'move' %} split into 2 groups. {% else %} partially deleted. {% endifequal %}

{% for fs in split_filesets %}
You tried to {{ action }} {{ fs.attempted_iids|length }} image{{ fs.attempted_iids|pluralize}} from a fileset, leaving {{ fs.blocking_iids|length }}.
{% with MAX_SHOWN=4 %}
{% for iid in fs.attempted_iids|slice:":4" %} {% endfor %} {% if fs.attempted_iids|length > MAX_SHOWN %}
...
{% endif %}
{% for iid in fs.blocking_iids|slice:":4" %} {% endfor %} {% if fs.blocking_iids|length > MAX_SHOWN %}
...
{% endif %}
{% endwith %}
{% endfor %}