diff --git a/client/src/ui/select.js b/client/src/ui/select.js
index 4a7505974d..43b17fed33 100644
--- a/client/src/ui/select.js
+++ b/client/src/ui/select.js
@@ -41,6 +41,7 @@ import Selectize from 'lib!selectize';
  *   searched items.
  * @property {'value'|'text'|'$order'|'$score'} [sortBy='$order'] Item sorting.
  * @property {'asc'|'desc'} [sortDirection='asc'] Sort direction.
+ * @property {function()} [onFocus] On-focus callback.
  */
 
 /**
@@ -153,6 +154,12 @@ const Select = {
             },
         };
 
+        if (options.onFocus) {
+            selectizeOptions.onFocus = function () {
+                options.onFocus();
+            };
+        }
+
         if (!options.matchAnyWord) {
             /** @this Selectize */
             selectizeOptions.score = function (search) {
diff --git a/client/src/views/fields/duration.js b/client/src/views/fields/duration.js
index 744b7392fc..be61d51e7d 100644
--- a/client/src/views/fields/duration.js
+++ b/client/src/views/fields/duration.js
@@ -38,6 +38,12 @@ class DurationFieldView extends EnumFieldView {
     detailTemplate = 'fields/varchar/detail'
     editTemplate = 'fields/duration/edit'
 
+    /**
+     * @private
+     * @type {boolean}
+     */
+    _justFocused = false
+
     data() {
         const valueIsSet = this.model.has(this.startField) && this.model.has(this.endField);
 
@@ -342,6 +348,10 @@ class DurationFieldView extends EnumFieldView {
 
                     callback(list);
                 },
+                onFocus: () => {
+                    this._justFocused = true;
+                    setTimeout(() => this._justFocused = false, 150);
+                },
             });
         }
     }
@@ -435,7 +445,7 @@ class DurationFieldView extends EnumFieldView {
     updateDuration() {
         const seconds = this.seconds;
 
-        if (this.isEditMode() && this.$duration && this.$duration.length) {
+        if (this.isEditMode() && this.$duration && this.$duration.length && !this._justFocused) {
             const options = this.getOptions().map(value => {
                 return {
                     value: value.toString(),