Comment 7 for bug 1927063

Disagree with 18.04 LTS (18.04.5) comment by @nrbrtx, considering gnome-terminal.

Open gnome-terminal.
Change directory to long name, from first character of username to last character "$" of directory summing 60, or 61+ characters.
Give it best effort and utilize "clear" command.
Utilize keyboard shortcut to escape from current command, "CTRL + C", twice.
Utilize keyboard shortcut to adjust window, "ALT + F8", and reduce horizontal width from the RIGHT edge to 62 characters. Notice one line of history is gone.
Continue and reduce horizontal width to 58 characters. Notice an unexpected character at beginning of last line of prompt.
Continue to 57 characters. The whole path is no longer visible.
Continue to 56 characters. Part of the path appears inside the cursor.
Continue to 55 characters. Path is now obscured.
Continue to 50 characters. Notice the obscured path is no longer present, but the path is not whole.
Continue and reduce horizontal width to minimum (31) from the RIGHT edge with arrow keys.
Utilize keyboard shortcut to escape from current command, "CTRL + C", twice.
The tool to change horizontal width has been disabled and a ^C is made visible at the last prompt, escaping to a new prompt with full path.
Utilize keyboard shortcut to adjust window, "ALT + F8", and increase horizontal width from the RIGHT edge to 60 characters or 61 characters. Notice the username is obscured.

If performed with 60 character line, Continue to typical 80 characters. The first letter of the username is now repeated on the last line.

If performed with 61 character line, first character of username is sometimes repeated on previous line.

If performed with 61+ character line, multiples of path are seen as original bug reports. You can make more lines with path appear if iterating between width of 31 and 32 characters.

My example is 62 characters:
userna@userna:~/userna/usernamefolder/direct/foobars/foobars$

Results:
userna@userna:~/userna/usernamefolder
userna@userna:~/userna/usernamefolder/direct/foobars/foobars$

Either with fast keyboard strokes or slow, there are a number of errors in line feed and character removal when adjusting the terminal width.