Fix destructuring assumption bug with using load_jinja2_templates

changelog.d/5994.feature

@@ -0,0 +1 @@
+Add the ability to send registration emails from the homeserver rather than delegating to an identity server.

synapse/rest/client/v2_alpha/account.py

@@ -261,7 +261,7 @@ def on_GET(self, request, medium):
             request.setResponseCode(e.code)
 
             # Show a failure page with a reason
-            html_template = load_jinja2_templates(
+            html_template, = load_jinja2_templates(
                 self.config.email_template_dir,
                 [self.config.email_password_reset_template_failure_html],
             )

synapse/rest/client/v2_alpha/register.py

@@ -293,7 +293,7 @@ def on_GET(self, request, medium):
             request.setResponseCode(e.code)
 
             # Show a failure page with a reason
-            html_template = load_jinja2_templates(
+            html_template, = load_jinja2_templates(
                 self.config.email_template_dir,
                 [self.config.email_registration_template_failure_html],
             )