Space quota: Usage is not calculated correctly if snapshot is created on a table then table is deleted and created again

Steps to reproduce:

1: ./hbase pe --table="bugatti" --nomapred --rows=400 sequentialWrite 10 (will put 4 mb data)
2: set_quota TYPE => SPACE, TABLE => 'bugatti', LIMIT => '7M', POLICY => NO_WRITES_COMPACTIONS
3: snapshot 'bugatti','bugatti_snapshot'
4: disable 'bugatti'
5: drop 'bugatti'
6: create 'bugatti','info0'
7: set_quota TYPE => SPACE, TABLE => 'bugatti', LIMIT => '5M', POLICY => NO_WRITES_COMPACTIONS
8: scan 'bugatti'
>> Observe that no data here and original snapshot size was 4 MB. but current usage is shown as 8 MB