monographs: don't regenerate slug on update

Author: 01zulfi

Notesnook.API/Controllers/MonographsController.cs

@@ -180,7 +180,6 @@ public async Task<IActionResult> UpdateAsync([FromQuery] string? deviceId, [From
                     monograph.Content = null;
 
                 monograph.DatePublished = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
-                monograph.Slug = GenerateSlug();
                 var result = await monographs.Collection.UpdateOneAsync(
                     CreateMonographFilter(userId, monograph),
                     Builders<Monograph>.Update
@@ -189,7 +188,6 @@ public async Task<IActionResult> UpdateAsync([FromQuery] string? deviceId, [From
                     .Set(m => m.EncryptedContent, monograph.EncryptedContent)
                     .Set(m => m.SelfDestruct, monograph.SelfDestruct)
                     .Set(m => m.Title, monograph.Title)
-                    .Set(m => m.Slug, monograph.Slug)
                     .Set(m => m.Password, monograph.Password)
                 );
                 if (!result.IsAcknowledged) return BadRequest();
@@ -200,7 +198,7 @@ public async Task<IActionResult> UpdateAsync([FromQuery] string? deviceId, [From
                 {
                     id = monograph.ItemId,
                     datePublished = monograph.DatePublished,
-                    publishUrl = monograph.ConstructPublishUrl()
+                    publishUrl = existingMonograph.ConstructPublishUrl()
                 });
             }
             catch (Exception e)