Double plants rendering glitch in protected areas

The bug

When a non-op player destroys a double plant within the spawn-protection area, the client of that player fails to the full plant (two blocks), resulting in half of the block, which is random too (up or down).

How to reproduce

1. Set up a Minecraft server (server jar for 1.15.2 can be downloaded here).
2. Set the spawn-protection field in the server.properties file to 100.
3. Make sure that you're not opped, but there has to be at least one opped player in ops.json. This is to make sure that spawn protection is active.
4. Join the server, find a double plant, and try to destroy it.