Additional digits appearing on the same events (those digits do not belong there)

Bug Description:

• I am doing the reconstruction on the same file evetest.root using two different clustering modules Fast and Mlem
• the digits on the same events are nearly the same but not the same. Some (very few) additional digits appear.
• this is except for the first non-zero digit event. In the first event all digits are exactly the same.

Without giving too much in-depth details I did some investigation and it seems there is a logical bug when freeing the digiArray between the events.