exec: retain exit status of commands, including if they were signaled

test.sh

@@ -342,6 +342,21 @@ expecting <<EOF
 minishell: : command not found
 EOF
 
+when_run <<EOF "exit status of last command is preserved"
+echo \$?
+ls nonexist
+echo \$?
+echo hi
+echo \$?
+EOF
+expecting <<EOF
+0
+ls: cannot access 'nonexist': No such file or directory
+2
+hi
+0
+EOF
+
 when_run <<EOF "quoted parentheses are not operators"
 echo unclosed '('
 EOF