1 - I execute a simple query:
Select * from pma_column_info Where 1
2 - I comment the Where 1 statment an re-execute the query
Select * from pma_column_info #Where 1
3 - I change the order by click on the column name, and the query become like this
Select * from_pma_colum_info #Where 1 Order By db_name
4 - And again
Select * from_pma_colum_info #Where 1 Order By db_name ASC Order by table_name ASC ...
Confirmed in 3.4.0.
This bug was fixed in repository and will be part of a future release; thanks for reporting.