Using query function in bf parameter in the DisMaxQParser forces the use of parameter dereferencing

The DisMaxQParser parses the bf parameter using the SolrPluginUtils.parseFieldBoosts(...) function. This function tokenizes the string based on whitespaces and then bulilds a map mapping fields to their boost values. Unfortunately, the the *

* form of a query contains whitespaces and therefore the parsing of the boost function fails.

This should be considered as a bug as effectively it forces the use of parameter dereferencing which in many cases is not ideal.