Don't revere-merge heading in commit messages, when doing a straight merge with "summary" template

Author: aik099

CHANGELOG.md

@@ -14,6 +14,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 ### Fixed
 - Attempt to print commit history of paths copied to themselves (e.g. trunk > branches/something > trunk) resulted in a recursion.
 - The `--no-merges` option of `merge` command wasn't used during actual merge, but only to display to be merged revisions.
+- The `Reverse-merge of ...` heading was shown even on strait merges (not reverse ones), when `commit` command was using `summary` merge template.
 
 ## [0.5.2] - 2019-06-20
 ### Fixed

src/SVNBuddy/Repository/CommitMessage/SummaryMergeTemplate.php

@@ -50,11 +50,21 @@ public function apply($wc_path)
 		$ret = '';
 
 		foreach ( $merged_revisions as $path => $revisions ) {
+			// No changes on particular path.
+			if ( !$revisions ) {
+				continue;
+			}
+
 			$source = $this->getMomentInTime($path, max($revisions));
 			$ret .= PHP_EOL . 'Merge of "' . $source . '" to "' . $target . '".' . PHP_EOL;
 		}
 
 		foreach ( $unmerged_revisions as $path => $revisions ) {
+			// No changes on particular path.
+			if ( !$revisions ) {
+				continue;
+			}
+
 			$source = $this->getMomentInTime($path, max($revisions));
 			$ret .= PHP_EOL . 'Reverse-merge of "' . $source . '" to "' . $target . '".' . PHP_EOL;
 		}