fix: find tab-indented batocera-systems entries

The entry pattern required four spaces of indent. EmuELEC indents 23 systems with one tab, so render appended each again whole and the published export carried 21 duplicated keys, the md5 fills only in the second copy. Any indent opens an entry now, and an entry written again keeps its own. The EmuELEC export is regenerated: one copy of each system, the amiga entry also gaining the eight WHDLoad Kickstarts the profiles added since 2026-10-22.

tests/test_exporters.py

@@ -2909,6 +2909,24 @@ class BatoceraNotesStayWithTheirItem(unittest.TestCase):
         self.assertEqual(trailing, {("bios/bk0010.zip", "two.rom"): "# tail"})
 
 
+class BatoceraEntriesAtAnyIndent(unittest.TestCase):
+    """EmuELEC indents 23 of its systems with one tab. The entry pattern
+    required four spaces, so each was appended again whole and the export
+    carried 21 duplicated keys that ast.literal_eval kept silently."""
+
+    def test_a_tab_indented_entry_is_located(self):
+        from exporter.batocera_exporter import Exporter
+
+        body = [
+            '    "atari5200": { "name": "5200", "biosFiles": [ { "md5": "a", "file": "bios/5200.rom" } ] },',
+            '\t"amiga": { "name": "Amiga", "biosFiles": [ { "md5": "b", "file": "bios/kick.rom" },',
+            '\t\t{ "md5": "c", "file": "bios/kick2.rom" } ] },',
+        ]
+        self.assertEqual(
+            Exporter._entry_spans(body), {"atari5200": (0, 0), "amiga": (1, 2)}
+        )
+
+
 class RecalboxKeepsUnchangedText(unittest.TestCase):
     """Every element the model held was re-rendered: attribute order,
     alignment, line breaks inside md5 and digest case changed in 222