956000 - Weird window behavior when a dialog appears while dragging a window

Status: UNCONFIRMED

(Core :: Widget: Win32, defect)

Description

[Selaya]

Attachment: Example of the described situation before dealing with the dialog

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0 (Beta/Release)
Build ID: 20131205075310

Steps to reproduce:

Hello Dears,

This is my first bug report, so I hope I`ll do everything correct, most importantly the category of this bug being posted in (please don`t be too harsh should I fail anything!)

Alright,
I was dragging a window of Firefox (browser), with this show window while dragging setting disabled (dunno what it`s called exactly; you`ll only see the outline of the window you`re dragging [the actual window is staying at its origin until the dragging process`s finished, where it`ll jump to the designated new location]), when, while dragging it, a dialog appears in this window


Actual results:

Upon release of the mouse button to finish the drag, the window stays on the origin and doesn`t jump to the destination, destination outline still visible, until the dialog has been dealt with (upon dealing with this dialog, the window will finish )


Expected results:

The window should finish the dragging process upon release of the mouse button, no matter whether a dialog has appeared during the dragging

Comment 1

[Selaya]

Oh, I forgot to mention that you cannot deal with the dialog with your mouse whatsoever, you`ll have to use your keyboard to perform any action.

<3, Sela