Win 7 x64
Broken in 1103abd
Short description of error
Using a shrinkwrap modifier on a curve gives the correct result in preview, but cannot be applied, and other objects relying on the curve shape use the original shape instead. Not sure if this is a failing of the modifier or just the intended behavior, but if it is intended, the modifier probably shouldn't be an option at all.
Exact steps for others to reproduce the error
View curve modifier and behavior of object plane.001