[MC-261281] When there is a block above the pitcher pod, it can still grow, resulting in only the lower half of the mature pitcher pod remaining

When you use a bone meal on a pitcher plant that is below another block, it can create an age 2 pitcher plant that is missing it's top half.

What I expected:
Pitcher plant cannot age past age 1.

What happened:
Pitcher plant became age 2 and lost it's top half.

Note that this takes a few tries.

Linked issues

age 2 pitcher plant does not normally have a top half - you can see this if you look at the top half of the block - it only appears if age is 3 or 4