cci: use row anchor target instead of title

Matching between row element and wikitext line was
failing due to the anchor text changing depending on
the Chinese variant used by the user. This is not
an issue restricted to Chinese, but any language
which uses LanguageConverter.

Using the anchor target (which doesn't change, even
when overriding the current variant being used; e.g.
`/zh-cn/` instead of `/wiki/`) should make matching
between row element and line much more reliable.

Discovered with the help of @fee1-dead.

src/ui/root/DeputyContributionSurveySection.tsx

@@ -25,6 +25,7 @@ import DeputyExtraneousElement from './DeputyExtraneousElement';
 import classMix from '../../util/classMix';
 import dangerModeConfirm from '../../util/dangerModeConfirm';
 import normalizeWikiHeading, { WikiHeading } from '../../wiki/util/normalizeWikiHeading';
+import parseDiffUrl from '../../wiki/util/parseDiffUrl';
 
 /**
  * The contribution survey section UI element. This includes a list of revisions
@@ -356,8 +357,15 @@ export default class DeputyContributionSurveySection implements DeputyUIElement
 				const anchor: HTMLElement = li.querySelector( 'a:first-of-type' );
 				// Avoid enlisting if the anchor can't be found (invalid row).
 				if ( anchor ) {
-					rowElements[ new mw.Title( anchor.innerText ).getPrefixedText() ] =
-						li as HTMLLIElement;
+					const anchorLinkTarget = parseDiffUrl(
+						new URL( anchor.getAttribute( 'href' ), window.location.href )
+					).title;
+					if ( !anchorLinkTarget ) {
+						warn( 'Could not parse target of anchor', anchor );
+					} else {
+						rowElements[ new mw.Title( anchorLinkTarget ).getPrefixedText() ] =
+							li as HTMLLIElement;
+					}
 				}
 			}
 		}
@@ -384,6 +392,7 @@ export default class DeputyContributionSurveySection implements DeputyUIElement
 					);
 				} else {
 					// Element somehow not in list. Just keep line as-is.
+					warn( `Could not find row element for "${csr.title.getPrefixedText()}"` );
 					rowElement = line;
 				}
 			} catch ( e ) {

src/wiki/util/parseDiffUrl.ts

@@ -11,6 +11,8 @@ interface DiffInfo {
  * or `oldid` from a URL. This is useful for converting diff URLs into actual
  * diff information, and especially useful for {{copied}} templates.
  *
+ * If diff parameters were not found (no `diff` or `oldid`), they will be `null`.
+ *
  * @param url The URL to parse
  * @return Parsed info: `diff` or `oldid` revision IDs, and/or the page title.
  */
@@ -66,7 +68,7 @@ export default function parseDiffUrl( url: URL | string ): DiffInfo {
 		const articlePathRegex = new RegExp( mw.util.getUrl( '(.*)' ) )
 			.exec( url.pathname );
 		if ( articlePathRegex != null ) {
-			title = articlePathRegex[ 1 ];
+			title = decodeURIComponent( articlePathRegex[ 1 ] );
 			break tryConvert;
 		}
 	}