Username tab completion appears on the left when invoked without a starting string in the middle of the chat entry line
To reproduce:
1. Type "hello, "
2. Hit tab and observe the tab completion box appear at the beginning of the line
See attached screenshot.
Created Issue:
Username tab completion appears on the left when invoked without a starting string in the middle of the chat entry line
To reproduce:
1. Type "hello, "
2. Hit tab and observe the tab completion box appear at the beginning of the lineSee attached screenshot.
Changed Description:
To reproduce:
1. Type "hello, "
2. Hit taband observe the tab completion box appear at the beginning of the lineSee attached screenshot.
To reproduce:
1. Type "hello, "
2. Hit tab and observe the tab completion box appear at the beginning of the lineSee attached screenshot.
Added Affects Versions: 1.13-pre7
Added Assignee:
[Mojang] Bartosz Bok
Added Fixed Versions: 1.13-pre9

Can confirm. However, if you type Hello r the tab completion box will appear correctly over the "r".
Relates to
MC-132652.Confirmed in 1.13-pre7.
Confirmed for 1.13-pre8.