[Bug] Order classes also generate a class .order#{$infix}-0 for every infix

Created by: kopax

Order classes are starting from 0 instead of 1 for every infix

• source: https://github.com/twbs/bootstrap/blob/v4.1.3/scss/mixins/_grid-framework.scss#L54

It should be like :

• source: https://github.com/twbs/bootstrap/blob/v4.1.3/scss/mixins/_grid-framework.scss#L22

Generate css is wrong:

.order-1-0 {
  order: 0;
}

.order-1-1 {
  order: 1;
}

.order-1-2 {
  order: 2;
}

.order-1-3 {
  order: 3;
}

.order-1-4 {
  order: 4;
}

.order-1-5 {
  order: 5;
}

.order-1-6 {
  order: 6;
}

.order-1-7 {
  order: 7;
}

.order-1-8 {
  order: 8;
}

.order-1-9 {
  order: 9;
}

.order-1-10 {
  order: 10;
}

.order-1-11 {
  order: 11;
}

.order-1-12 {
  order: 12;
}

Possible fix:

// Framework grid generation
//
// Used only by Bootstrap to generate the correct number of grid classes given
// any value of `$grid-columns`.

@mixin make-grid-columns($columns: $grid-columns, $gutter: $grid-gutter-width, $breakpoints: $grid-breakpoints) {
  // Common properties for all breakpoints
  %grid-column {
    position: relative;
    width: 100%;
    padding-right: $gutter / 2;
    padding-left: $gutter / 2;
  }

  @each $breakpoint in map-keys($breakpoints) {
    $infix: breakpoint-infix($breakpoint, $breakpoints);

    // Allow columns to stretch full width below their breakpoints
    @for $i from 1 through $columns {
      .col#{$infix}-#{$i} {
        @extend %grid-column;
      }
    }
    .col#{$infix},
    .col#{$infix}-auto {
      @extend %grid-column;
    }

    @include media-breakpoint-up($breakpoint, $breakpoints) {
      // Provide basic `.col-{bp}` classes for equal-width flexbox columns
      .col#{$infix} {
        flex-basis: 0;
        flex-grow: 1;
        max-width: 100%;
      }
      .col#{$infix}-auto {
        flex: 0 0 auto;
        width: auto;
        max-width: 100%; // Reset earlier grid tiers
      }

      @for $i from 1 through $columns {
        .col#{$infix}-#{$i} {
          @include make-col($i, $columns);
        }
      }

      .order#{$infix}-first { order: -1; }

      .order#{$infix}-last { order: $columns + 1; }

-      @for $i from 0 through $columns {
+      @for $i from 1 through $columns {
        .order#{$infix}-#{$i} { order: $i; }
      }

      // `$columns - 1` because offsetting by the width of an entire row isn't possible
-      @for $i from 0 through ($columns - 1) {
+      @for $i from 1 through ($columns - 1) {
        @if not ($infix == "" and $i == 0) { // Avoid emitting useless .offset-0
          .offset#{$infix}-#{$i} {
            @include make-col-offset($i, $columns);
          }
        }
      }
    }
  }
}