Formatting of an if-statement like this does not work correctly:

if (condition_1) {
    // Comment-1
    doSomething(1);
} else {
    // Comment-2
    if (condition_2) {
        doSomething(2);
    } else {
        doSomething(3);
    }
}

Is formatted as:

if (condition_1) {
    // Comment-1
    doSomething(1);
} else // Comment-2
if (condition_2) {
    doSomething(2);
} else {
    doSomething(3);
}

As "Comment-2" is behind the "else", it doesn't look like a comment for the following if-statement, but as a comment for the else-statement.

Instead, formatting should not change anything in this special case (the block following the else contains a comment in the very first line). However, I really like building a switch-like if-else structure, when there is no comment in the first line of the block following else, like this:

if (condition_1) {
    // Comment-1
    doSomething(1);
} else {
    if (condition_2) {
        doSomething(2);
    } else {
        doSomething(3);
    }
}

being formatted to:

if (condition_1) {
    // Comment-1
    doSomething(1);
} else if (condition_2) {
    doSomething(2);
} else {
    doSomething(3);
}

as this does not change source code semantics.