Less hackish way for !ContentPane to start child widgets after an href load, avoids href load triggering onShow(), which apparently was happening in some but not all cases.   Test case to follow.   Fixes #15581, refs #15702, partially fixing it, !strict.
Less hackish way for !ContentPane to start child widgets after an href load, avoids href load triggering onShow(), which apparently was happening in some but not all cases.   Test case to follow.   Fixes #15581, refs #15702, partially fixing it, !strict.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@29303 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful