Smaller refactoring

Author: linkdotnet

src/LinkDotNet.Blog.Domain/BlogPost.cs

@@ -116,7 +116,7 @@ public static BlogPost Create(
             PreviewImageUrl = previewImageUrl,
             PreviewImageUrlFallback = previewImageUrlFallback,
             IsPublished = isPublished,
-            Tags = tags?.Select(t => t.Trim()).ToImmutableArray(),
+            Tags = tags?.Select(t => t.Trim()).ToImmutableArray() ?? ImmutableArray<string>.Empty,
             ReadingTimeInMinutes = ReadingTimeCalculator.CalculateReadingTime(content),
         };
 

src/LinkDotNet.Blog.Web/Features/Admin/BlogPostEditor/Components/CreateNewModel.cs

@@ -108,7 +108,9 @@ public static CreateNewModel FromBlogPost(BlogPost blogPost)
 
     public BlogPost ToBlogPost()
     {
-        var tagList = string.IsNullOrWhiteSpace(Tags) ? ArraySegment<string>.Empty : Tags.Split(",");
+        var tagList = string.IsNullOrWhiteSpace(Tags)
+            ? Array.Empty<string>()
+            : Tags.Split(",", StringSplitOptions.RemoveEmptyEntries);
         DateTime? updatedDate = ShouldUpdateDate || originalUpdatedDate == default
             ? null
             : originalUpdatedDate;