bugfix: selftest MicroSD test

releases/Next-ChangeLog.md

@@ -11,6 +11,7 @@ This lists the new changes that have not yet been published in a normal release.
 - Bugfix: If all change outputs have `nValue=0` they were not shown in UX.
 - Bugfix: Disallow negative input/output amounts in PSBT.
 - Bugfix: Fix filesystem initialization after Wife LFS or Destroy Seed.
+- Bugfix: Fix MicroSD selftest
 
 ## Spending Policy Feature
 

shared/selftest.py

@@ -364,7 +364,7 @@ async def test_microsd():
 
         with CardSlot(slot_b=slot_num) as card:
 
-            _, fn = card.pick_filename('test-delme.txt')
+            fn, _ = card.pick_filename('test-delme.txt')
 
             with open(fn, 'wt') as fd:
                 fd.write("Hello")