**System Information**
Win7x64 and all CG vendors
**Blender Version**
Broken: 2.70a
**Short description of error**
Joining 2 meshes with ctrl+J will destroy UV maps. I'm giving courses this week and that problem nearly made my last course fail. It would be really nice if we could have a solution for the next one on Friday :)
**Exact steps for others to reproduce the error**
Open attached file, hit ctrl+J, one of the triangles has no texture anymore.{F86363}
Thanks for that awesome program :)