Version: Nightly, r12668 This is *really* hard to describe; I'm doing my best here. I'll post an example of what I'm reading so you can perform the action yourself and see what I mean. Step 1: Go to http://www.apache.org/ Step 2: In the paragraph under "Farewell to Nicolas Chalumenau", select the entire first sentence - the entire first line, plus part of the second line which ends with "of October at the age of 27.". Step 3: Drag that text selection. You should see the text you selected, as well as, off to the right, *just the underline* from the link that appears on that line. No idea what part this bug belongs to. Filing as "new bugs" and hoping someone can triage.
Tried this one out and it seems what makes the difference is how long you hold down the mouse button before starting the drag. If you drag immediatly the effect is a selection change, otherwise if you hold it down for a second or more before starting the drag, then the text block is dragged. I tried the same behaviour test in TextEdit and Firefox and both start the object drag (as opposed to selection change), as soon as the mouse is down on the selected area and moved. In this regards Webkit provides inconsitent behaviour and I would consider this an issue. This is also true in nightly 2006-02-11.
I can reproduce this with both 2.0.3 and ToT. Depending on the browser window width, more or less than one sentence may need to be selected. I observe the behavior mentioned in comment 1 in TextEdit, as well, and I think it's a feature. There is some way to control the delay IIRC, it might affect your results. Anyway, I don't think it is related to this particular bug at all.
Created attachment 6415 [details] test case
<rdar://problem/6970268>
This doesn't happen any more as of Safari 7.0.5, but probably only because we don't paint underlines in drag image at all! Which seems wrong.