Problem:
When upgrading from a 2.2.x version to a 2.5.x version, the configuration info (Administration -> General Configuration) does not appear to restore correctly. After restarting Confluence, it appears.

Steps to replicate:
1) Install 2.2.10
2) Modify general configuration
3) Create backup
4) Restore on 2.5.7
5) Check general configuration

Assessment:
It appears that this may be due to configuration info being stored in the xml file confluence-global.bandana.xml as opposed to on the BANDANA table in later versions. This info is not reloaded into active memory.

Workaround:
After restoring backup, go to Administration, Cache Statistics, and click 'Flush all'.