docs: public static String getOverlappingWithGroupsTargetFilter(final String baseFilter, final List<RolloutGroup> groups,
              final RolloutGroup group) {
          final String groupFilter = group.getTargetFilterQuery();
          // when any previous group has the same filter as the target group the
          // overlap is 100%
          if (isTargetFilterInGroups(groupFilter, groups)) {
              return concatAndTargetFilters(baseFilter, groupFilter);
          }
          final String previousGroupFilters = getAllGroupsTargetFilter(groups);
          if (!StringUtils.isEmpty(previousGroupFilters)) {
              if (!StringUtils.isEmpty(groupFilter)) {
                  return concatAndTargetFilters(baseFilter, groupFilter, previousGroupFilters);
              } else {
                  return concatAndTargetFilters(baseFilter, previousGroupFilters);
              }
          }
          if (!StringUtils.isEmpty(groupFilter)) {
              return concatAndTargetFilters(baseFilter, groupFilter);
          } else {
              return baseFilter;
          }
      }