Ignore blank PO revision dates

Author: noreply

babel/messages/catalog.py

@@ -585,7 +585,7 @@ def _set_mime_headers(self, headers: Iterable[tuple[str, str]]) -> None:
                 self.creation_date = _parse_datetime_header(value)
             elif name == 'po-revision-date':
                 # Keep the value if it's not the default one
-                if 'YEAR' not in value:
+                if value.strip() and 'YEAR' not in value:
                     self.revision_date = _parse_datetime_header(value)
 
     mime_headers = property(

tests/messages/test_pofile_read.py

@@ -164,6 +164,16 @@ def test_header_entry():
     assert list(catalog)[0].fuzzy
 
 
+def test_header_entry_blank_revision_date():
+    buf = StringIO(r'''
+msgid ""
+msgstr ""
+"PO-Revision-Date: \n"
+''')
+    catalog = pofile.read_po(buf)
+    assert catalog.revision_date == 'YEAR-MO-DA HO:MI+ZONE'
+
+
 def test_obsolete_message():
     buf = StringIO(r'''# This is an obsolete message
 #~ msgid "foo"