Dataset already registered : "%s" SQLite

[lainz]

I get this message, in the %s part I get just an empty string.

Message definition:
https://github.com/alrieckert/freepascal/blob/master/packages/fcl-db/src/base/dbconst.pas

Used in this unit in two places:
https://github.com/newpascal/freepascal/blob/master/packages/fcl-db/src/base/database.inc#L184

'RegisterDataset'
method.

Any ideas of what can generate this error?

Edit:

database.inc is on file DB.pas, that contains the class TDatabase, used by TSQLite3Connection (child of it).

Used in other class here

Code: Pascal  [Select][+][-]

1. { ---------------------------------------------------------------------
2.     TDBDataset
3.   ---------------------------------------------------------------------}
4.  
5. Procedure TDBDataset.SetDatabase (Value : TDatabase);
6.  
7. begin
8.   If Value<>FDatabase then
9.     begin
10.     CheckInactive;
11.     If Assigned(FDatabase) then
12.       FDatabase.UnregisterDataset(Self);
13.     If Value<>Nil Then
14.       Value.RegisterDataset(Self);
15.     FDatabase:=Value;
16.     end;
17. end;
18.  
19. TDBDataset.SetTransaction (Value : TDBTransaction);
20.  
21. begin
22.   CheckInactive;
23.   If Value<>FTransaction then
24.     begin
25.     If Assigned(FTransaction) then
26.       FTransaction.UnregisterDataset(Self);
27.     If Value<>Nil Then
28.       Value.RegisterDataset(Self);
29.     FTransaction:=Value;
30.     end;
31. end;

It must be setting the database or setting the transaction... The problem is that this comes randomly and I can't debug this.