Don't load already loaded task attachments again when saving an edited task description

src/components/input/editor.vue

@@ -117,6 +117,7 @@ export default {
 
 			preview: '',
 			attachmentService: null,
+			loadedAttachments: {},
 
 			config: {
 				autoDownloadFontAwesome: false,
@@ -392,6 +393,13 @@ export default {
 						const parts = img.dataset.src.substr(window.API_URL.length + 1).split('/')
 						const taskId = parseInt(parts[1])
 						const attachmentId = parseInt(parts[3])
+						const cacheKey = `${taskId}-${attachmentId}`
+
+						if (typeof this.loadedAttachments[cacheKey] !== 'undefined') {
+							img.src = this.loadedAttachments[cacheKey]
+							continue
+						}
+
 						const attachment = new AttachmentModel({taskId: taskId, id: attachmentId})
 
 						if (this.attachmentService === null) {
@@ -401,6 +409,7 @@ export default {
 						this.attachmentService.getBlobUrl(attachment)
 							.then(url => {
 								img.src = url
+								this.loadedAttachments[cacheKey] = url
 							})
 					}
 				}