autocommit not working for delete?

[Xuesong Luo]

Hi,
I set up solr to autocommit each minute. It works well if I sent an add
request, but it does not work for delete, nothing happened after 1
minute. Is this a bug or a designed behavior?

Thanks
Xuesong

<autoCommit>
   <maxTime>60000</maxTime>
</autoCommit>