When rendering a view with an exposed form programmatically, no #theme value is set when the system attempts to render a view with an exposed form. In this case, the views data is rendered out to csv.
Render a view with an exposed form programmatically and note "Theme hook not found" error in dblog.
Slightly alter the code in views_plugin_exposed_form.inc to set the form's '#theme' value to an array containing a blank key if it is not present to prevent the generation of the "Theme hook not found" error.
Needs review
3.0
Miscellaneous
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
I reworked the patch to correct the path, and the coding standards. I noticed that it created an element in the array that is an empty string - is that needed, or can it be an actual empty array?