Wrong indentation for the last in a series of gradients followed by background-color

Prettier 2.8.4
Playground link

--parser css
--print-width 60
--tab-width 4

Input:

background: linear-gradient(
  to right,
  rgb(119, 59, 210),
  rgba(185, 54, 210, 0)
 ),
 linear-gradient(
  to right,
  rgb(119, 59, 210),
  rgba(136, 60, 210, 0.74074) 33.704%,
  rgba(168, 57, 210, 0.25926) 66.296%,
  rgba(185, 54, 210, 0)
 ),
 linear-gradient(
  to right,
  hsl(263.84, 62.66%, 52.75%),
  hsla(276.93, 62.74%, 52.8%, 0.5) 50%,
  hsla(290.38, 63.41%, 51.76%, 0)
 )
 #0000ff;

Output:

background: linear-gradient(
        to right,
        rgb(119, 59, 210),
        rgba(185, 54, 210, 0)
    ),
    linear-gradient(
        to right,
        rgb(119, 59, 210),
        rgba(136, 60, 210, 0.74074) 33.704%,
        rgba(168, 57, 210, 0.25926) 66.296%,
        rgba(185, 54, 210, 0)
    ),
    linear-gradient(
            to right,
            hsl(263.84, 62.66%, 52.75%),
            hsla(276.93, 62.74%, 52.8%, 0.5) 50%,
            hsla(290.38, 63.41%, 51.76%, 0)
        )
        #0000ff;

Expected behavior:

background: linear-gradient(
        to right,
        rgb(119, 59, 210),
        rgba(185, 54, 210, 0)
    ),
    linear-gradient(
        to right,
        rgb(119, 59, 210),
        rgba(136, 60, 210, 0.74074) 33.704%,
        rgba(168, 57, 210, 0.25926) 66.296%,
        rgba(185, 54, 210, 0)
    ),
    linear-gradient(
        to right,
        hsl(263.84, 62.66%, 52.75%),
        hsla(276.93, 62.74%, 52.8%, 0.5) 50%,
        hsla(290.38, 63.41%, 51.76%, 0)
    )
    #0000ff;

Start with the linked Prettier Playground reproduction using the CSS parser, 60-column print width, and four-space tab width. Trace the CSS formatting path for a series of gradients followed by a background color, then add coverage for this input and verify that the final gradient and color use the expected indentation.