Replace first occurrence only.

Closes #3454780

src/Parser.php

@@ -2187,7 +2187,11 @@ class Parser {
 
     $docblock[$property] = '';
     while (preg_match('/' . self::RE_TAG_START . $property . '\s(.*?)(?=\n' . self::RE_TAG_START . '|$)/s', $docblock['content'], $matches)) {
-      $docblock['content'] = str_replace($matches[0], '', $docblock['content']);
+      // Replace the first occurrence only as similar namespaces could be truncated.
+      $pos = strpos($docblock['content'], $matches[0]);
+      if ($pos !== FALSE) {
+        $docblock['content'] = substr_replace($docblock['content'], '', $pos, strlen($matches[0]));
+      }
       $docblock[$property] .= "\n\n" . $matches[1];
     }
     $docblock[$property] = Formatter::formatDocumentation($docblock[$property], TRUE, $tmp);