When you jump on growing wheat, you get stuck on it. You can't jump. You can get away from stuck by breaking the mud block under the wheat.
Environment
OS: Windows 10 64bit
Java 1.8.0_25 64bit
PC specs:
CPU: Intel Core i5-4670K CPU @3.40Ghz
Display: AMD Radeon HD 6700 series
8GB RAM
This issue duplicates MC-104259.