correct issue with modal tag management submit function.

app/static/js/modal-pagination.js

@@ -159,6 +159,16 @@ document.addEventListener('DOMContentLoaded', () => {
     }
   }
 
+  // Shared function to submit a tag (avoids page refresh issues with form dispatch)
+  async function submitTag() {
+    const id = getEditorImageId();
+    const name = (tagInput?.value || '').trim();
+    if (!id || !name) return;
+    hideAutocomplete();
+    await addTag(id, name);
+    if (tagInput) tagInput.value = '';
+  }
+
   if (tagInput) {
     // Show autocomplete on focus
     tagInput.addEventListener('focus', () => {
@@ -196,8 +206,7 @@ document.addEventListener('DOMContentLoaded', () => {
         const selected = autocompleteItems[autocompleteSelectedIndex];
         if (selected) {
           tagInput.value = selected.name;
-          hideAutocomplete();
-          tagForm.dispatchEvent(new Event('submit'));
+          submitTag();
         }
       } else if (e.key === 'Escape') {
         hideAutocomplete();
@@ -213,8 +222,7 @@ document.addEventListener('DOMContentLoaded', () => {
       const name = item.dataset.name;
       if (tagInput && name) {
         tagInput.value = name;
-        hideAutocomplete();
-        tagForm.dispatchEvent(new Event('submit'));
+        submitTag();
       }
     });
   }
@@ -222,12 +230,7 @@ document.addEventListener('DOMContentLoaded', () => {
   if (tagForm) {
     tagForm.addEventListener('submit', async (e) => {
       e.preventDefault();
-      const id = getEditorImageId();
-      const name = (tagInput.value || '').trim();
-      if (!id || !name) return;
-      hideAutocomplete();
-      await addTag(id, name);
-      tagInput.value = '';
+      await submitTag();
     });
   }
   if (tagList) {