po(change): flush Memoize cache, to fix bug after rename/remove

Signed-off-by: intrigeri <intrigeri@boum.org>

IkiWiki/Plugin/po.pm

@@ -364,6 +364,7 @@ sub change(@) { #{{{
 		# Reinitialize module's private variables.
 		resetalreadyfiltered();
 		resettranslationscache();
+		flushmemoizecache();
 		# Trigger a wiki refresh.
 		require IkiWiki::Render;
 		# without preliminary saveindex/loadindex, refresh()
@@ -658,6 +659,11 @@ sub resettranslationscache() { #{{{
 	undef %translations;
 } #}}}
 
+sub flushmemoizecache() { #{{{
+	Memoize::flush_cache("_istranslation");
+	Memoize::flush_cache("percenttranslated");
+} #}}}
+
 sub urlto_with_orig_beautiful_urlpath($$) { #{{{
 	my $to=shift;
 	my $from=shift;

doc/plugins/po.mdwn

@@ -592,10 +592,8 @@ Robustness tests
 ### Creating pages
 
 - creating a master page via RCS: **OK**
-- creating a master page via CGI: **FIXME** the new page's
-  translations are rendered as if they weren't translations (i.e.
-  `targetpage=newpage.LL/index.html`, and no de-gettext-isation);
-  touch'ing `newpage.mdwn` + refresh does not fix it, rebuild does.
+- creating a master page via CGI: **FIXME** the new master page has no
+  `otherlanguages` links until refreshed once more
 
 ### Deleting pages