Fix overtriggering. (#4457)

lib/DDG/Goodie/Calculator.pm

@@ -195,6 +195,7 @@ handle query => sub {
     return if $query =~ m/^\)|\($/; # shouldn't open with a closing brace or finish with an opening brace
     return if $query =~ m/(a?cosh?|tau|a?sin|a?tan|log|ln|exp|tanh|cbrt|cubed?)e?$/i; # stops empty functions at end or with <func>e
     return if $query =~ m#(?:x(\^|/)|(\^|/)x)#; # stops triggering on what is most likely algebra
+    return if $query =~ m#^0\d+/\d+$#;
 
     # some shallow preprocessing of the query
     $query =~ s/^(?:what is|calculat(e|or)|solve|math)//i;

t/Calculator.t

@@ -543,6 +543,7 @@ ddg_goodie_test(
     ')1108278829' => undef,
     '24score' => undef,
     '24 score' => undef,
+    '06026/6126' => undef,
 );
 
 done_testing;