Incorrect use of $path variable gives incorrect old_alias value

While doing a bit of debugging I came across an odd thing were the value of old_alias was set to the first character of the alias. I tracked it down to pathauto_form_alter where the variable $path being a string is used as an array. Strangely I haven't seen any odd behavior because of this, maybe I'm just not triggering the if statements with my content. Anyway I will try and get back with a patch later today.