fix:一级标题相同时，目录列表丢失

app/src/main/java/io/legado/app/model/webBook/BookChapterList.kt

@@ -193,8 +193,8 @@ object BookChapterList {
                 }
                 if (bookChapter.url.isEmpty()) {
                     if (bookChapter.isVolume) {
-                        bookChapter.url = bookChapter.title
-                        Debug.log(bookSource.bookSourceUrl, "一级目录${index}未获取到url,使用章节标题替代")
+                        bookChapter.url = bookChapter.title + index
+                        Debug.log(bookSource.bookSourceUrl, "一级目录${index}未获取到url,使用${bookChapter.title}${index}替代")
                     } else {
                         bookChapter.url = baseUrl
                         Debug.log(bookSource.bookSourceUrl, "目录${index}未获取到url,使用baseUrl替代")

app/src/main/java/io/legado/app/model/webBook/WebBook.kt

@@ -261,8 +261,8 @@ object WebBook {
             Debug.log(bookSource.bookSourceUrl, "⇒正文规则为空,使用章节链接:${bookChapter.url}")
             return bookChapter.url
         }
-        if(bookChapter.isVolume && bookChapter.url == bookChapter.title) {
-            Debug.log(bookSource.bookSourceUrl, "⇒一级目录获取链接为空，使用${bookChapter.tag}")
+        if(bookChapter.isVolume && bookChapter.url.startsWith(bookChapter.title)) {
+            Debug.log(bookSource.bookSourceUrl, "⇒一级目录正文不解析规则")
             return bookChapter.tag ?: ""
         }
         return if (bookChapter.url == book.bookUrl && !book.tocHtml.isNullOrEmpty()) {

app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt

@@ -129,7 +129,7 @@ object ChapterProvider {
                 matcher.appendTail(sb)
                 text = sb.toString()
                 val isTitle = index == 0
-                val isVolumeTitle = bookChapter.isVolume && isTitle && bookChapter.url == bookChapter.title && bookChapter.tag.isNullOrBlank()
+                val isVolumeTitle = bookChapter.isVolume && isTitle && contents.size == 1
                 val textPaint = if (isTitle) titlePaint else contentPaint
                 if (!(isTitle && ReadBookConfig.titleMode == 2)) {
                     setTypeText(
@@ -147,7 +147,7 @@ object ChapterProvider {
                     val text = content.substring(start, matcher.start())
                     if (text.isNotBlank()) {
                         val isTitle = index == 0
-                        val isVolumeTitle = bookChapter.isVolume && isTitle && bookChapter.url == bookChapter.title && bookChapter.tag.isNullOrBlank()
+                        val isVolumeTitle = bookChapter.isVolume && isTitle && contents.size == 1
                         val textPaint = if (isTitle) titlePaint else contentPaint
                         if (!(isTitle && ReadBookConfig.titleMode == 2)) {
                             setTypeText(
@@ -169,7 +169,7 @@ object ChapterProvider {
                     val text = content.substring(start, content.length)
                     if (text.isNotBlank()) {
                         val isTitle = index == 0
-                        val isVolumeTitle = bookChapter.isVolume && isTitle && bookChapter.url == bookChapter.title && bookChapter.tag.isNullOrBlank()
+                        val isVolumeTitle = bookChapter.isVolume && isTitle && contents.size == 1
                         val textPaint = if (isTitle) titlePaint else contentPaint
                         if (!(isTitle && ReadBookConfig.titleMode == 2)) {
                             setTypeText(