When odb is 100% full, I cannot delete anything, this is the error produced: <pre> [ODBEdit,ERROR] [odb.c:329:free_data,ERROR] cannot free data, database is full </pre>
For regular users, there is a solution: save odb into an xml file, increase odb size, reload odb and continue.
But it would be nice to fix the underlying big - it looks like free_data() is missing the code to deal with the case when there is no free space blocks available. I cannot make heads from tails there, maybe Stefan can figure it out.
Handing this bug to Stefan.