When aggregating over shared locations (i.e. either when coverage is selected or when the "Total over states" location option is selected), we need to regenerate the truth plot when any new forecaster is added in case it changes the common location set. The old truth plot is reused when USE_CURR_TRUTH is TRUE, so we just need to set USE_CURR_TRUTH to FALSE.
When aggregating over shared locations (i.e. either when coverage is selected or when the "Total over states" location option is selected), we need to regenerate the truth plot when any new forecaster is added in case it changes the common location set. The old truth plot is reused when
USE_CURR_TRUTHisTRUE, so we just need to setUSE_CURR_TRUTHtoFALSE.