[weebdex] make metadata extraction non-fatal (#8939)

test/results/weebdex.py

@@ -83,7 +83,7 @@ ___
     "manga_id"     : "3o0icxno26",
     "origin"       : "ja",
     "title"        : "Cuộc hẹn tại phía Đông vườn địa đàng",
-    "uploader"     : "wSwPTgL",
+    "uploader"     : str,
     "version"      : 1,
     "volume"       : 2,
     "year"         : 2021,
@@ -102,6 +102,34 @@ ___
     ),
 },
 
+{
+    "#url"     : "https://weebdex.org/chapter/spsn025m8a",
+    "#comment" : "no 'demographic' data (#8939)",
+    "#class"   : weebdex.WeebdexChapterExtractor,
+    "#count"   : 49,
+
+    "artist"       : ["Fuugetsu Makoto"],
+    "author"       : ["Koyagi Mei"],
+    "chapter"      : 1,
+    "chapter_id"   : "spsn025m8a",
+    "chapter_minor": "",
+    "count"        : 49,
+    "date"         : "dt:2026-01-19 11:12:36",
+    "demographic"  : None,
+    "group"        : ["Asmodeus Scans"],
+    "lang"         : "en",
+    "manga"        : "Yuusha no Sensei, Saikyou no Kuzu ni naru. ~S-kyuu Party no Moto Eiyuu, Ura Shakai no Ihou Guild de Nariagari~",
+    "manga_date"   : "dt:2025-10-09 09:21:18",
+    "manga_id"     : "vtyi8syfjd",
+    "origin"       : "ja",
+    "original"     : True,
+    "title"        : "",
+    "uploader"     : "asmodai",
+    "version"      : 1,
+    "volume"       : 1,
+    "year"         : 2023,
+},
+
 {
     "#url"     : "https://weebdex.org/title/3o0icxno26/ani-datta-mono",
     "#class"   : weebdex.WeebdexMangaExtractor,