fix(text-template): Fix the rendering error of the text content

- roll back to the default culture, if specified culture template is empty
- If the dynamic template definition query is empty, fall back to the static template definition

aspnet-core/modules/text-templating/LINGYUN.Abp.TextTemplating.Domain/LINGYUN/Abp/TextTemplating/TextTemplateContentContributor.cs

@@ -1,6 +1,7 @@
 using Microsoft.Extensions.Caching.Distributed;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Options;
+using System;
 using System.Threading.Tasks;
 using Volo.Abp.Caching;
 using Volo.Abp.DependencyInjection;
@@ -42,6 +43,12 @@ public class TextTemplateContentContributor : ITemplateContentContributor, ITran
         var repository = context.ServiceProvider.GetRequiredService<ITextTemplateRepository>();
         var template = await repository.FindByNameAsync(context.TemplateDefinition.Name, culture);
 
+        // 2025/06/23 fixed 非内联本地化模板内容为空时,回退到默认文化
+        if (template == null && !culture.IsNullOrWhiteSpace())
+        {
+            template = await repository.FindByNameAsync(context.TemplateDefinition.Name, context.TemplateDefinition.DefaultCultureName);
+        }
+
         return new TextTemplateContentCacheItem(
             template?.Name,
             template?.Content,

aspnet-core/modules/text-templating/LINGYUN.Abp.TextTemplating.Domain/LINGYUN/Abp/TextTemplating/TextTemplateContentProvider.cs

@@ -30,8 +30,12 @@ public class TextTemplateContentProvider : TemplateContentProvider, ITransientDe
         bool tryDefaults = true, 
         bool useCurrentCultureIfCultureNameIsNull = true)
     {
-        var template = await TemplateDefinitionStore.GetAsync(templateName);
+        var template = await TemplateDefinitionStore.GetOrNullAsync(templateName);
+        if (template != null)
+        {
+            return await GetContentOrNullAsync(template, cultureName);
+        }
 
-        return await GetContentOrNullAsync(template, cultureName);
+        return await base.GetContentOrNullAsync(templateName, cultureName, tryDefaults, useCurrentCultureIfCultureNameIsNull);
     }
 }

aspnet-core/modules/text-templating/LINGYUN.Abp.TextTemplating.Domain/LINGYUN/Abp/TextTemplating/TextTemplateDefinitionInitializer.cs

@@ -36,7 +36,7 @@ public class TextTemplateDefinitionInitializer : ITransientDependency
         using var scope = RootServiceProvider.CreateScope();
         var applicationLifetime = scope.ServiceProvider.GetService<IHostApplicationLifetime>();
         var token = applicationLifetime?.ApplicationStopping ?? cancellationToken;
-        using (CancellationTokenProvider.Use(cancellationToken))
+        using (CancellationTokenProvider.Use(token))
         {
             if (CancellationTokenProvider.Token.IsCancellationRequested)
             {