0.9.25 regression: TypeError in PathItem.add

[tjunnone]

In my app, I have a paper.Path.Line item, and when dragging the item with the mouse I perform the following type of operation:

item.removeSegments();
item.add(new Point(100, 20), new Point(170, 75));

After I add and remove (removing items from the view seems to be key, it always starts after a removal) a number of these items to the view, I consistently receive the following exceptions when using Paper 0.9.25:
Uncaught TypeError: Cannot set property '_path' of undefined
PathItem.extend._adjustCurves @ paper-full.js:7336
PathItem.extend._add @ paper-full.js:7324
PathItem.extend.add @ paper-full.js:7359
<my code, doing the the item.add>

The line on paper-full.js:7336 is "curve._path = this;"

Now, I might be doing something wrong in my app, but downgrading to Paper 0.9.24 consistently fixes the issue, and I've tested moving between the two versions several times now.

There's a also a second type of error, where just clicking on the item that no longer can be moved due to the error above also produces a "Uncaught TypeError: Cannot read property 'getNormal' of null" in PathItem.extend.statics._addSquareCap @ paper-full.js:8540, happens inside of Paper's own PaperScopeItem.extend.hitTest in response to my code just printing out event.item.

[tjunnone]

Git bisect between 0.9.24 and 0.9.25 suggests the breaking change is in the following commit:

commit 648985f
Author: Jürg Lehni juerg@scratchdisk.com
Date: Sat Oct 24 18:11:30 2015 +0200

Fix yet another issue with Path#curves and Path#_add()

Including a unit test to prevent regression.