[Bug] stylelint customSyntax postcss-lit deletes custom variables

First of all big thanks for fixing the main issue with variables inside string literals in css files for lit components.

The bug happens when you are using both a linter (to cut long lines of css into multiple lines) and stylelint with customSyntax postcss-lit in the following scenario:

let's assume we have the following css (single line css selector):
.long-class-name-container.${veryLongVariableNameAddedHere} .small-image-container span ${anotherVeryLongVariableNameAddedHere} img {
width: 100%;
height: 100%;
}

This will get parsed after linting into:
.long-class-name-container.${veryLongVariableNameAddedHere}
.small-image-container
span
${anotherVeryLongVariableNameAddedHere}
img {
width: 100%;
height: 100%;
}

And after stylelint into:
.general-takeover-container./* missing variable veryLongVariableNameAddedHere here*/
.small-image-container
span
/* missing variable anotherVeryLongVariableNameAddedHere here*/
img {
width: 100%;
height: 100%;
}

This is not happening when for example we have only one ${variable} at the end with "{" and gets parsed on the last line like:
.long-class-name-container .small-image-container span ${anotherVeryLongVariableNameAddedHere} {

into .long-class-name-container
.small-image-container
span
${anotherVeryLongVariableNameAddedHere} {
width: 100%;
height: 100%;
}