- Fix mailto optional params in plain text messages aren't handled (#1487026)

CHANGELOG

@@ -16,6 +16,7 @@ CHANGELOG Roundcube Webmail
 - Fix: contact group input is empty when using rename action more than once on the same group record
 - Fix "Server Error! (Not Found)" when using utils/save-pref action (#1487023)
 - Fix handling of Thunderbird's vCards (#1487024)
+- Fix mailto optional params in plain text messages aren't handled (#1487026)
 
 RELEASE 0.4.1
 -------------

program/include/rcube_string_replacer.php

@@ -42,6 +42,7 @@ class rcube_string_replacer
     $this->mailto_pattern = "/("
         ."[-\w!\#\$%&\'*+~\/^`|{}=]+(?:\.[-\w!\#\$%&\'*+~\/^`|{}=]+)*"  // local-part
         ."@([a-z0-9]([-a-z0-9]*[a-z0-9])?\\.)+[a-z]{2,5}"               // domain-part
+        ."(\?\S+)?"                                                     // e.g. ?subject=test...
         .")/i";
   }