Weeping vines and twisting vines stop growing completely after being harvested

Steps to Reproduce:

1. Place twisting vines/weeping vines
2. Wait for the vines to grow (increase the randomtickspeed to speed up the process)
3. Harvest the vines
4. Wait for the vines to grow again

Observed Results:
The vines do not grow again after being harvested.

Expected Results:
The vines should continue growing after being harvested.

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Original Description:
When a patch of weeping vines is broken by moving slime blocks or flying machines it stops growing completely.