Incorrect PossiblyUndefinedVariable after try/catch statement

[gdejong]

Hi, in this case $data is always defined but a PossiblyUndefinedVariable error is triggered.

https://psalm.dev/r/6fda415fad

[psalm-github-bot]

I found these snippets:

https://psalm.dev/r/6fda415fad

<?php

class A {
    public function __construct(int $a) {
        try {
            switch($a){
            	case 1:
                	$data = "one";
                	break;
            	default:
                	throw new RuntimeException("not one");
        	}
        } catch(Throwable $e) {
            $data = $e->getMessage();
        }
        
        echo $data;
    }
}

new A(2);

Psalm output (using commit 6d4d166):

INFO: PossiblyUndefinedVariable - 17:14 - Possibly undefined variable $data defined in try block