Import incorrectly dropped when correcting string template expression with redundant braces

[rsmith20]

Expected Behavior

Given

import java.io.File.separator

val s = "${separator} is a file separator"

upon formatting it should be

import java.io.File.separator

val s = "$separator is a file separator"

Observed Behavior

Instead, the import is deleted

val s = "$separator is a file separator"

Your Environment

• Version of ktlint used: 1.2.1
• Relevant parts of the .editorconfig settings: ktlint_code_style = intellij_idea
• Name and version (or code for custom task) of integration used (Gradle plugin, Maven plugin, command line, custom Gradle task): repros with CLI ktlint as well as intelliJ plugin.

Work Around

Manually re-add imports or fix redundant braces before formatting.

[paul-dingemans]

Tnx for reporting. The problem seems to be related to using ${separator}. With code below the problem does not occur:

import java.io.File.separator

val s = "$separator is a file separator"