I rode a strider on lava in the nether and accidentally hit Shift. Then the overworld was glitchy like in the case of MC-175177.

How to reproduce:

1. Go to the nether and summon a strider.
2. Saddle it and mount it.
3. Switch to survival mode.
4. Ride it over lava.
5. Hit Shift and fall into the lava.
6. Respawn in the overworld
7. Realize that when you are trying to break blocks they turn into the blocks that exist in the nether at the same coordinates.