AlmostDone/When (step 7) passes test when code isn't correct

[p3p3fr0g]

The following code passes the test at this level

fun applyFilter(picture: String, filterName: String): String {
   var newPicture = trimPicture(picture)
   when (filterName) {
       "borders" -> {applyBordersFilter(newPicture)}
        "squared" -> {applySquaredFilter(newPicture)}
       else -> error("Invalid filter name")
   }
    return newPicture
}

when it needs to be

fun applyFilter(picture: String, filterName: String): String {
    var newPicture = trimPicture(picture)
    newPicture = when (filterName) {
        "borders" -> {applyBordersFilter(newPicture)}
        "squared" -> {applySquaredFilter(newPicture)}
        else -> error("Invalid filter name")
    }
    return newPicture
}

otherwise it causes issues in step 11