Crashes when clicking on a link

[tahuttun]

Open irssi and write "http://google.com" to the input line. Add spaces to the begin of the line as long as there is no space after URL.

PuttyTray will crash with message box saying:
PuTTY Fatal Error:
line==NULL in terminal.c
lineno=5919 y=39 w=128 h=39
count(scrollback=0000000001CDF5F0)=0
count(screen=0000000001CDFD10)=39
count(alt=0000000001CDFD50)=39 alt_sblines=14
whichtree=0000000001CDFD10 treeindex=39

FuTTY Develpoment snapshot 2011-04-22:r45 is also affected to this bug.

Tested with

• 64 bit release & Win7
• Putty Tray Release p0.62-t010j