Stable branches: Unused city_options order
#44960 takes city_options order present in savegames to use in master. That leaves "unused entry" warnings to stable branches (S3_0 & S3_1, even in S2_6)
Patches for S3_1, S3_0, and S2_6 attached
#44960 takes city_options order present in savegames to use in master. That leaves "unused entry" warnings to stable branches (S3_0 & S3_1, even in S2_6)