Multiline if-else does not format else if

[pdb-stripe]

I observed yesterday that when enabling the multiline-if-else rule and running the formatter, else-if blocks were not converted to multiline.

Expected Behavior

Given this code:

if (foo) doFoo()
else if (bar) doBar()

the formatter for the multiline-if-else rule should convert it to:

if (foo) {
    doFoo()
} else if (bar) {
    doBar()
}

Observed Behavior

This code actually formats to:

if (foo) {
    doFoo()
} else if (bar) doBar()

Steps to Reproduce

We had code with this syntax:

if (foo) return doFoo()
else if (bar) return doBar()
return null

Since it probably should have used a lifted return statement or a when statement (or both), my guess is this unique scenario would not be discovered if some other rules were not also disabled - but not entirely sure.

Your Environment

Ktlint 0.50.0, MacOS

This was executed using ktlint-gradle (via ./gradlew ktlintFormat) 11.6.1 on Gradle 8.5