Super Flat Test.mcworld 

Villager Population far higher than bed count.

The population will suddenly jump.  It seems to be related to placing/removing beds.  The bed count does not seem to be accurate.

It's affecting Golems too

After some testing on another world, I believe it may be related to very large villages that extend beyond the simulation distance.  I was able to reproduce on a test world by creating a large village with many villagers, removing beds and then reducing villager population by killing them with pillagers.  The villagers went on to reproduce to a population roughly 1.5x the number of beds. 

I created a second test village to try to reproduce again and was again able to get more villagers than beds.  I have 10 beds and 11 villagers.  First create 2 separate villages far enough apart that they are considered separate villages and outside the simulation distance of the other.  Then add beds between the villages to create a third village that combines the first two.  I've provided new pictures of this new test village.

The golems in the test village are self spawned.