Disable fork with named begin

SystemVerilog
, ,
1 
class disablefork;
int i;

task fork1stmt;
	fork 
	begin : fork_1
		#2ns;
		$display("fork1stmt at %0tns", $time);
	end
	begin : fork_2
		fork2stmt();
		$display("fork2stmt at %0tns", $time);
	end
	join_none
	disable fork_2;
endtask

task fork2stmt;
	#10ns; 
	$display("Inside fork2stmt: fork2stmt at %0tns", $time);
		
endtask

endclass

module tb_top();
	initial begin
		disablefork disableforkex_i;
		disableforkex_i = new();
		disableforkex_i.fork1stmt();
	end
endmodule

Result:
fork1stmt at 2ns
Inside fork2stmt: fork2stmt at 10ns
fork2stmt at 10ns

Question:
After exiting fork-join_none inside fork1stmt task, I expect disable fork2 to disable all of the pending threads in fork2stmt task.
But, the simulation waits for 10ns and prints the “Inside fork2stmt: fork2stmt at 10ns
fork2stmt at 10ns”. Why did the fork2 named block did not get disabled?

2

In reply to natasv:

For the same reason as this code.