diff --git a/git-filter-repo b/git-filter-repo
index 9cce52ae..9cd79737 100755
--- a/git-filter-repo
+++ b/git-filter-repo
@@ -2987,11 +2987,14 @@ class RepoFilter(object):
       abort(_("GIT_DIR must be .git"))
 
     # Check for refname collisions
+    print("AQUI 1");
     if config_settings.get(b'core.ignorecase', b'false') == b'true':
+      print("AQUI 2");
       collisions = collections.defaultdict(list)
       for ref in refs:
         collisions[ref.lower()].append(ref)
       msg = ""
+      print(collisions)
       for ref in collisions:
         if len(collisions[ref]) >= 2:
           msg += "    " + decode(b", ".join(collisions[ref])) + "\n"
@@ -3001,8 +3004,10 @@ class RepoFilter(object):
             "filesystem since you have refs that differ in case only:\n"
             "%s") % msg)
     if config_settings.get(b'core.precomposeunicode', b'false') == b'true':
+      print("AQUI 3");
       import unicodedata # Mac users need to have python-3.8
       collisions = collections.defaultdict(list)
+      print(collisions)
       for ref in refs:
         strref = decode(ref)
         collisions[unicodedata.normalize('NFC', strref)].append(strref)
diff --git a/t/t9390-filter-repo.sh b/t/t9390-filter-repo.sh
index ce4ab0c0..4730f0c4 100755
--- a/t/t9390-filter-repo.sh
+++ b/t/t9390-filter-repo.sh
@@ -1361,7 +1361,7 @@ test_expect_success 'startup sanity checks' '
 		git config core.precomposeUnicode true &&
 		git update-ref refs/remotes/origin/lamé refs/heads/master &&
 		git update-ref refs/remotes/origin/lamé refs/heads/master &&
-		git config core.ignoreCase true &&
+		git show-ref &&
 		test_must_fail git filter-repo --path numbers 2>../err
 		test_i18ngrep "Cannot rewrite history on a character normalizing" ../err &&
 		git update-ref -d refs/remotes/origin/lamé &&
@@ -1370,6 +1370,8 @@ test_expect_success 'startup sanity checks' '
 	)
 '
 
+exit 2
+
 test_expect_success 'other startup error cases and requests for help' '
 	(
 		# prevent MSYS2 (Git for Windows) from converting the colon to