Fix the polarity of the magnet for a number of runs
We recorded the wrong polarity because of a bug and we need to fix it before processing them with Hlt2 and Sprucing, as agreed at the OPG (https://indico.cern.ch/event/1420241/#13-data-with-wrong-magnet-cond).
To record what was used by Hlt1 to process the runs from 295226 to 295402 included, I created the tag https://gitlab.cern.ch/lhcb-conddb/lhcb-conditions-database/-/tags/special%2Fhlt1-conditions-for-fills-9651-to-9654.