trigger error: TypeError: parentPage[0] is undefined on jQuery collection with more than 1 root element

[[email protected]…]

Context: jQuery Mobile App. Objective: Creating app-wide navigation contents in a panel to the left. JQM 1.3.x does not have an app-wide panel, each page must have its own panel. Actual panel contents are created on a single, separate page, and copied to every page using jQuery clone() and append() at runtime. Problem raises when trigger() is called to the 'create' event on a collection with all pages.

If the call $(someselector).trigger('create') is called and $(someselector) has a single root element, it works. otherwise it gives the error:

TypeError: parentPage[0] is undefined

(as reported by Firefox 22 for Windows - using FireBug 1.11.4)

[dmethvin]

The text parentPage doesn't appear in jQuery core. Please reduce the problem to a simple test case and file it with the appropriate bug tracker, as listed at ​http://bugs.jquery.com.