Ticket #23517: file.patch

shortcodes.php

@@ -188 +188 @@
                 .     '(?:'
                 .         '\\/(?!\\])'               // A forward slash not followed by a closing bracket
                 .         '[^\\]\\/]*'               // Not a closing bracket or forward slash
+                .         '|'
+                .         '(?<=\\S)\\/'              // A forward slash if preceded by non-whitespace
                 .     ')*?'
                 . ')'
                 . '(?:'
-                .     '(\\/)'                        // 4: Self closing tag ...
+                .     '(?<!\\S)(\\/)'                // 4: Self closing tag, if preceded by whitespace ...
                 .     '\\]'                          // ... and closing bracket
                 . '|'
                 .     '\\]'                          // Closing bracket