docs: public void fillReleaseMutation(MutationBatch m, boolean excludeCurrentLock) {
          // Add the deletes to the end of the mutation
          ColumnListMutation<C> row = m.withRow(columnFamily, key);
          for (C c : locksToDelete) {
              row.deleteColumn(c);
          }
          if (!excludeCurrentLock && lockColumn != null) 
              row.deleteColumn(lockColumn);
          locksToDelete.clear();
          lockColumn = null;
      }