Merge branch 'release/1.0.5'

* release/1.0.5:
  Version bump
  Fixed English translation bug.

README.md

@@ -3,4 +3,4 @@ The Idea Bureau, WordPresss Foundation
 
 A collection of classes to base WordPress theme functionality on
 
-Version 1.0.4
+Version 1.0.5

src/Translation.php

@@ -394,6 +394,10 @@ function getDuplicateOfId($post_id = NULL) {
 			$post_id = get_the_ID();
 		}
 
+		if ( $this->getPostLanguage($post_id) !== $this->getLanguageCode() ) {
+			return true;
+		}
+
 		if ( ! metadata_exists('post', $post_id, '_icl_lang_duplicate_of') ) {
 			return false;
 		}
@@ -415,6 +419,10 @@ function getPostLanguage($post_id = NULL)
 
 		$post_details = apply_filters('wpml_post_language_details', NULL, $post_id);
 
+		if (is_wp_error($post_details)) {
+			return 'en';
+		}
+
 		return $post_details['language_code'];
 	}
 
@@ -502,6 +510,10 @@ function translateFilter(string $content, int $post_id, string $key) {
 		// get the original post language
 		$original_language = $this->getPostLanguage($original_id);
 
+		if ( ! $original_language ) {
+			return $content;
+		}
+
 		// return if the original and current languages are the same
 		if ( $original_language === $this->getLanguageCode() ) {
 			return $content;