[jQuery] jQuery 1.4 and Broken UI Dialog Animations

[Scott Gibson]

I dropped the new jQuery 1.4 into my site, and suddenly every dialog
window stopped working.

Simple dialog code no longer works:
$(div).dialog({show: "drop"});

It will play the animation, but when the animation finishes the dialog
disappears.

I've tried this with jQuery UI 1.7.1, 1.7.2, and 1.8a1.  Same issue
across the board.