In the following lineage :
table1 ------> process1 ----- > table2 ----> process2 ----> table3
1.Add tag to table1 (default 'false' value set for removePropagationsOnEntityDelete )
2. Drop table2.
3. Now tag is removed from table2 and not any more propagated to table3.
In little older builds , table2 is just marked DELETED but tag is still associated to table2 and propagated to table3.