We've recently just patched our 1.9.1.0 build with SUPEE-11086, and came across an issue with a failing patch for app/code/core/Mage/Adminhtml/Block/Customer/Group/Edit.php
- It's expecting that line 57 be the same codebase as Magento 1.9.3 (at least from what we've tested so far).
Error:
checking file app/code/core/Mage/Adminhtml/Block/Customer/Group/Edit.php
Hunk #1 FAILED at 57.
1 out of 1 hunk FAILED
Unfortunately, the fix for us was to grab the latest Edit.php from a 1.9.3 install we have, and then patch. I'm sure there's a better explanation, but as far as we can tell, 1.9.1.0 does NOT include the getDeleteUrl() function, and that's what it's patching. Confirmed in a fresh download of 1.9.1.0 from Release Archive.