If you set the commandModificationBlockLimit gamerule to 0 and try to use a fill command to only change one block, it will not work, as expected. But if you use a setblock command instead, it will still work, bypassing the set limit.

Steps to reproduce:

1. Set the commandModificationBlockLimit gamerule to 0
2. Run "/setblock ~ ~ ~ stone"
3. The block is placed

What I expected:

• "Too many blocks in the specified area (maximum 0, specified 1)"

What I observed:

• 1 block is placed, bypassing the set limit of 0

To see the gamerule functioning properly:

1. Set the commandModificationBlockLimit gamerule to 0
2. Run "/fill ~ ~ ~ ~ ~ ~ stone"
3. It throws an error ("Too many blocks in the specified area (maximum 0, specified 1)")