Foreground process informations , used for tab title or some dbus queries , are not updated when the process is replaced by another one. 

This bug was introduced by commit " 79ca76a94 - Fix checking of foreground process "
In Session::getProcessInfo() :  _foregroundProcessInfo is updated only the first time (when null).
The only other time it gets updated is by calling Session::foregroundProcessName() .




Reproducible: Always

Steps to Reproduce:
1. Open a tab in Konsole and use the default tab title format ( %d : %n ) 
2. Run command "sleep 2"
3. Run command "cat"

Actual Results:  
When running the second command, the tab title is updated with the process name of the first command ("sleep") .

Expected Results:  
When running the second command, the tab title should be updated with the name of the process currently running ("cat") .