Query Designer can hang GUI

Query Designer can hang UGENE GUI by processing result annotations in the main thread. The issue is located somewhere in the class QDScheduler, method report(), line

linker->pushToTable();

.

Scenario to reproduce:

1. Open Query Designer.
2. Open "RepeatsWithOrf" sample.
3. Launch the scheme with human_T1.fa as input.
   Current state: QD creates 23494 groups of annotations and starts to process them. GUI hangs up.