ENGCOM-1396: [forwardport] PR#12712 : Found 2 elements with non-unique id #email #14867

 - Merge Pull Request #14867 from julienanquetil/magento2:issue14850
 - Merged commits:
   1. b7c0f1b

Author: magento-engcom-team

app/code/Magento/Customer/view/frontend/web/template/authentication-popup.html

@@ -54,10 +54,10 @@
                   id="login-form">
                 <div class="fieldset login" data-bind="attr: {'data-hasrequired': $t('* Required Fields')}">
                     <div class="field email required">
-                        <label class="label" for="email"><span data-bind="i18n: 'Email Address'"></span></label>
+                        <label class="label" for="customer-email"><span data-bind="i18n: 'Email Address'"></span></label>
                         <div class="control">
                             <input name="username"
-                                   id="email"
+                                   id="customer-email"
                                    type="email"
                                    class="input-text"
                                    data-bind="attr: {autocomplete: autocomplete}"