the text in a selectable text view with/or without scrollbar is moving up and down constantly while the left button is kept pressed

[kaoutsis]

r25112, for example, while the Mail Daemon Status log window from #2133 is on the screen, select a text with the left button of the mouse, and keep the button pressed: all the text in the view is moving up and down constantly, while the left mouse button is kept pressed.

[kaoutsis]

another way to reproduce is : * open StyledEdit * select File > Save As * move the mouse pointer inside name text field * press and hold the left mouse button: you will see the 'Untitled 1' to move a bit up and down periodically.

[kaoutsis]

i found another example to reproduce the bug: 1) Open DataTranslations pref. app 2) From the list, find and click <PNG images> 3) Right of the list, there is a selectable text view that says: "libpng version 1.2.26 - April 2, 2008 ..." click and hold the left mouse button: The whole text is 'dancing' up and down constantly, as long as the button is kept pressed.

[scottmc]

In r27904 this no longer happens in the PNGTranslator, but it still happens in the Save As text field for StyledEdit. Not sure when it got fixed for the PNGTranslator case, but I do recall seeing it still happen there just a few weeks ago.

[scottmc]

It still happens in the PNGTranslator as of r28291.

[mmlr]

(In #3235) Another duplicate of #2134.