ports/179070: tmux does not redraw existing characters when inserting text at the command prompt after `clear` is used

[Timothy Harewood]

>Number:         179070
>Category:       ports
>Synopsis:       tmux does not redraw existing characters when inserting text at the command prompt after `clear` is used
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed May 29 00:50:04 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Timothy Harewood
>Release:        FreeBSD 9.1-RELEASE amd64
>Organization:
>Environment:
FreeBSD zero-two.nulldata.net 9.1-RELEASE-p3 FreeBSD 9.1-RELEASE-p3 #0: Mon Apr 29 18:27:25 UTC 2013     root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64
>Description:
When typing on the command line, if the cursor is moved back to insert additional characters, the characters that exist to the right of the cursor are not redrawn as new characters are inserted. The existing characters only appear after the cursor passes over them manually using the arrow keys. The issue appears once the `clear` command is used.

Desktop environment is Xfce4 (4.10_5)
Terminal emulators affected/tested: xfce4-terminal, xterm

Tested with empty .tmux.conf and problem still exists
Tested with and without libevent2/libevent static compile options, issue persists
>How-To-Repeat:
- Create a new tmux session
- Issue the `clear` command
- Insert characters on the command line
- Place cursor inside existing text and type additional characters
- Text is not redrawn
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: