MCPE 0.13.0 build 1-3 signs can't block water anymore when it is connected to a block then another. The water just breaks the sign. I don't know if it's a bug or a new feature, but I don't like it. Please fix it or remove this feature.

How to produce this bug:
1)Place any block
2) put a sign beside it.
3)put another sign on the first sign. Then repeat.
4)when you put water beside the signs, it just destroys it.

Advanced thank you if you can fix this bug or feature.

My phone is a Cherry Mobile Flare Mini.