Using the tab key to complete commands on iOS doesn't work as expected. Command completion options don't work when tab key is used at the end of the parameter, but do if you move the cursor to the start of the parameter.

Steps to Reproduce:
1. Type "/locate str"
2. Press the tab key

Observed Results:
Command does not complete to "/locate structure" and instead you get "/locate strō"

Expected Results:
Command completes to "/locate structure"

Notes:
Typing "/locate str" and then moving the cursor before the "s" in structure (with the cursor keys on the keyboard) and then pressing tab causes the command to complete, but places a ō symbol before it (the command still works anyway).

Happy to record a video if required.

Edit: Updated description and use case to reflect changes to the /locate command from when /locate biome was introduced.