Formatting changes semantics of the code when using functions with the expression body written in the next line

[antifriz]

Expected Behavior

main.kt:

fun foo()
= 1

should either leave it as it is or indent it accordingly

Observed Behavior

running ktlint -F main.kt edits the file in the following way

fun foo()
1

which changes the semantics of the code / makes it invalid

Steps to Reproduce

printf 'fun foo()\n=1' > /tmp/foo.kt
ktlint -F /tmp/foo.kt
cat /tmp/foo.kt

Your Environment

• Version of ktlint used: 0.40.0
• Name and version (or code for custom task) of integration used (Gradle plugin, Maven plugin, command line, custom Gradle task): bash-3.2
• Version of Gradle used (if applicable): n/a
• Operating System and version: macOS 10.15.6
• Link to your project (if it's a public repository): n/a

[Tapchicoma]

Could not reproduce with current snapshot version. Most probably was fixed with #1039