fix: avoid a exception and check for a hash value
fix: avoid a exception and check for a hash value

This is a fix for the SELFHTML Wiki links; seems as if there is something seriously going wrong.

MatthiasApsel/cforum,ckruse/cforum,CountOrlok/cforum,CountOrlok/cforum,MatthiasApsel/cforum,CountOrlok/cforum,ckruse/cforum,ckruse/cforum,MatthiasApsel/cforum,ckruse/cforum,MatthiasApsel/cforum,CountOrlok/cforum