Stream DB query fails if Journal DB query tags are used

[elliVM]

Describe the bug
StreamDB queries will fail if used with recognized tags that are not sourcetype, host or index.

Introduced in commit 082376e.

Before

LOGGER.debug("Element tag was not index, sourcetype or host: <{}>", tag);

After

throw new IllegalStateException("Unsupported StreamDB query element tag <" + tag + ">");

Expected behavior
Should these known tags be silently passed for streaming queries? Or is throwing exception correct here and only throw if the tag is unknown.

How to reproduce
run streaming query with known unsupported tags like <earliest> <latest> or <indexstatement>.

Software version
4.7.1

Additional context
line

[elliVM]

moved issue from wrong repository

[elliVM]

@kortemik could you please see if this should be changed or not