Jumptru object pops out falling player

Link to .capx file (required!):

dl.dropboxusercontent.com/u/34384736/construct/jumpthru.capx

Steps to reproduce:

1. Jump off "Sprite2"

2. Press control button to collide with this sprite

3.

Observed result:

<img src="http://s2.hostingkartinok.com/uploads/images/2013/08/24020d1a360019c47b1eb3acb38e92f8.gif" border="0" />

Expected result:

<img src="http://s5.hostingkartinok.com/uploads/images/2013/08/cc31ac4d96f2a7438d0b545f1fcbead9.gif" border="0" />

Browsers affected:

Chrome: yes

Firefox: yes

Operating system & service pack:

Windows 7 SP 1

Construct 2 version:

139 (stable)

Doesn't reproduce if the jumpthru is a lot taller and you fall down further. The snapping has to happen to at least a small extent so the platform movement is tolerant of small errors in the movement. However it does look like the tolerance is too large for jumpthrus; I've reduced it for the next build, so it only happens if you really are very close to the top of the jumpthru.