Upgrade fails (build number does not match)
Upgrade fails with
ERROR: detected installed build number does not match fix build number!
jahia-impl-*.jar has incorrect build number.
To apply the fix, the default file
jahia-impl-*.jar must be present with the correct build number.
If the customer has the correct jar available, replace the existing one in
WEB-INF/lib/ with it. Else do a fresh install of required version and copy the jar generated.