4724 – Template literal escaping: Inconsistent behavior when -inline is on

Not sure if this is a rejects-valid or an accepts-invalid, since the spec isn't clear on how passing template alias parameters that refer to a function scope is supposed to work. The inconsistency, though, means at least one of these is wrong.
import std.algorithm, std.array;
void main() {
 uint[] arr = [1, 2, 3];
 // Doesn't work with -inline
 auto res1 = array(
 map!((a) { return a == arr[0]; })(arr)
 );
 // Works if the previous statement is commented out or -inline
 // is disabled.
 auto res2 = array(
 map!((uint a) { return a == arr[0]; })(arr)
 );
}
Error message (version 2.048, only when -inline is enabled):
test.d(8): Error: function D main is a nested function and cannot be accessed from array

This is an important issue, I hit it often.

*** This issue has been marked as a duplicate of issue 4841 ***