I learned today I can't force a crash in Minecraft (apparently because on my laptop the F-keys are the sub-function, not the default function, so pressing F3+C is actually FN+F3+C?). I'm using an AMD Radeon HD 7670M graphics card. I'm not sure how to get the driver version without a crash log in Win 7.
I produced a version of this bug in single-player survival mode 1.5, while mining obsidian under a thin layer of water. When I finished mining the obsidian block, it would flash and instantly reappear as a whole block. I mined the block again and it did the same thing. Moving away would eventually cause the block to break and drop the item block normally....happened for a number of blocks, but not all of them.
@Kumasasa
Done. Its an 11411.