Repeating command block bug

so there is a bug in Minecraft bedrock that when you place a always active repeating command block and you type a command 

Example: summon egg ~₂

And when you try to  edit, redact, retype the command it doesn't function for me. This might be a bug so please fix this. If you want any other details reach out to me on discord or leave comment here if you can

discord username: cutekillquick