**System Information**
Archlinux
GTX 460
**Blender Version**
Broken: 2.71 RC2
Worked: 2.62
**Short description of error**
Some vertices snapped on top of each other in applied edit cage mode don't merge when auto merge is enabled. This used to work (tested in 2.62, but possibly works in newer versions too). It always works when not in applied edit cage mode (the triangle icon on some modifiers, e.g. subserf).
**Exact steps for others to reproduce the error**
1. Open {F94594}
2. Press G and move the cursor over a corner vertex (the ones in the middle seem to work in both 2.62 and 2.71. If you try the corner ones you'll notice that snapping does not use the applied edit cage, but that's a whole different thing..)
3. In 2.62 the vertices are merged as expected. In 2.71 they are not.