fq with { or } in Solr 4.3.1

[Peter Kirk]

Hi

If I do a search like 
/search?q=catid:{123}

I get the results I expect.

But if I do
/search?q=*:*&fq=catid{123}

I get an error from Solr like:
org.apache.solr.search.SyntaxError: Cannot parse 'catid:{123}': Encountered " 
"}" "} "" at line 1, column 58. Was expecting one of: "TO" ... <RANGE_QUOTED> 
... <RANGE_GOOP> ...


Can I not use { or } in an fq?

Thanks,
Peter