match cannot query the vertex after drop tag, but fetch can

[Nicole00]

Describe the bug (required)

match and fetch have inconsistent result.

And the vertex without tag cannot be counted.

How To Reproduce(required)

1. create tag player(name string)
2. insert vertex player(name) values "100":("tom")
3. drop tag player

then query the vertex, according to pr #3328, we should get the vertex without any tag. But match query returns nothing, fetch query returns the vertex id.

[HarrisChu]

#3649

[critical27]

Duplicate with #3649

[HarrisChu]

1. for show stats, duplicate with After inserting a vertex without a tag, useshow statsto count the numbers of vertices or edges that cannot be counted #3649
2. for match, maybe should discuss offline.

[HarrisChu]

cc @nevermore3

[Shylock-Hg]

Duplicate with #3688