won't stop moving

[breakfast-for-dinner]

I have found a bug!

• Operating System: linux mint
• Browser: google chrome (latest version)

Description the "move" block repeats itself and the sprite continuously moves until it goes off the screen

How to Reproduce

1. go to editor
2. put "move" block in workspace (under "movement")
3. click run

Expected Behavior i expected the block to only run once

Screenshots

[nmsderp]

fixed