The default collation for cp1251 has been changed to general_ci

sql/share/charsets/Index.xml

@@ -208,7 +208,7 @@ To make maintaining easier please:
   <alias>windows-1251</alias>
   <alias>ms-cyr</alias>
   <alias>ms-cyrillic</alias>
-  <collation name="cp1251_bulgarian_ci"	id="14"	flag="primary">
+  <collation name="cp1251_bulgarian_ci"	id="14">
     <order>Belarusian</order>
     <order>Bulgarian</order>
     <order>Macedonian</order>
@@ -219,7 +219,7 @@ To make maintaining easier please:
   </collation>
   <collation name="cp1251_ukrainian_ci"	id="23"	order="Ukrainian"/>
   <collation name="cp1251_bin"		id="50"	order="Binary"	flag="binary"/>
-  <collation name="cp1251_general_ci"	id="51">
+  <collation name="cp1251_general_ci"	id="51" flag="primary">
     <order>Belarusian</order>
     <order>Bulgarian</order>
     <order>Macedonian</order>