Fix #1522: Initial preview rendering correction when preview returned by server immediately after upload

CHANGE.md

@@ -1,6 +1,12 @@
 Change Log: `bootstrap-fileinput`
 =================================
 
+## version 5.0.9
+
+**Date:** _under development_
+
+- (bug #1518, #1522): Initial preview rendering correction when preview returned by server immediately after upload.
+
 ## version 5.0.8
 
 **Date:** 13-Dec-2019

js/fileinput.js

@@ -1775,7 +1775,7 @@
                     if (!$h.isArray(content)) {
                         content = content.split(self.initialPreviewDelimiter);
                     }
-                    if (append && data.content && data.content.length) {
+                    if (append && data.content) {
                         index = data.content.push(content[0]) - 1;
                         data.config[index] = config;
                         data.tags[index] = tags;