Index: typo3/sysext/backend/Resources/Public/JavaScript/jsfunc.inline.js
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- typo3/sysext/backend/Resources/Public/JavaScript/jsfunc.inline.js	(date 1466165207000)
+++ typo3/sysext/backend/Resources/Public/JavaScript/jsfunc.inline.js	(revision )
@@ -49,7 +49,7 @@
 
 		var recordHeader = TYPO3.jQuery(this);
 		inline.expandCollapseRecord(
-			recordHeader.attr('id').replace('_header', ''),
+			recordHeader.attr('id').replace(/\_header$/, ''),
 			recordHeader.attr('data-expandSingle'),
 			recordHeader.attr('data-returnURL')
 		);