Commands (as text) repeating in a command block

Hello, (I'm in MCPE Beta)

Whenever I type a command in a command block (specifically a repeating one) and then power that command block, at the end of the command it repeats part of the beginning of the command, but it repeats it not like the first 30 or something letters but more like the first 30% (about) of the command.

For example, if I typed "/execute positioned as @a run /give diamond" and then I run the command and go back in the command block, it would say /execute positioned as @a run /give Diamond/execute posit", sometimes it repeats the repeated command after the repeated command too.

I tried to replicate it and only did it after i cloned the command, (and probably running it). I also posted this in the "#beta-n-bugs" discord channel on the Minecraft discord server. (Sorry for this message being so long, also there is an example in the attachment image)