Fix undefined variables in mxisd and Dimension configuration

roles/matrix-bridge-appservice-discord/defaults/main.yml

@@ -128,6 +128,6 @@ matrix_appservice_discord_configuration_extension_yaml: |
     #    # fininished handling it, causing us to echo it back to the room)
     #    discordSendDelay: 750
 
-matrix_appservice_discord_configuration_extension: "{{ matrix_appservice_discord_configuration_extension_yaml|from_yaml if matrix_appservice_discord_configuration_extension_yaml|from_yaml else {} }}"
+matrix_appservice_discord_configuration_extension: "{{ matrix_appservice_discord_configuration_extension_yaml|from_yaml if matrix_appservice_discord_configuration_extension_yaml|from_yaml is mapping else {} }}"
 
 matrix_appservice_discord_configuration: "{{ matrix_appservice_discord_configuration_yaml|from_yaml|combine(matrix_appservice_discord_configuration_extension, recursive=True) }}"

roles/matrix-bridge-appservice-irc/defaults/main.yml

@@ -433,6 +433,6 @@ matrix_appservice_irc_configuration_extension_yaml: |
   #   # the database.
   #   #
 
-matrix_appservice_irc_configuration_extension: "{{ matrix_appservice_irc_configuration_extension_yaml|from_yaml if matrix_appservice_irc_configuration_extension_yaml|from_yaml else {} }}"
+matrix_appservice_irc_configuration_extension: "{{ matrix_appservice_irc_configuration_extension_yaml|from_yaml if matrix_appservice_irc_configuration_extension_yaml|from_yaml is mapping else {} }}"
 
 matrix_appservice_irc_configuration: "{{ matrix_appservice_irc_configuration_yaml|from_yaml|combine(matrix_appservice_irc_configuration_extension, recursive=True) }}"

roles/matrix-dimension/defaults/main.yml

@@ -128,6 +128,7 @@ matrix_dimension_configuration_extension_yaml: |
   #   botToken: "YourTokenHere"
   #
 
+matrix_dimension_configuration_extension: "{{ matrix_dimension_configuration_extension_yaml|from_yaml if matrix_dimension_configuration_extension_yaml|from_yaml is mapping else {} }}"
 
 # Holds the final Dimension configuration (a combination of the default and its extension).
 # You most likely don't need to touch this variable. Instead, see `matrix_dimension_configuration_yaml`.

roles/matrix-mxisd/defaults/main.yml

@@ -161,6 +161,8 @@ matrix_mxisd_configuration_extension_yaml: |
   #     bindDn: CN=My Mxisd User,OU=Users,DC=example,DC=org
   #     bindPassword: TheUserPassword
 
+matrix_mxisd_configuration_extension: "{{ matrix_mxisd_configuration_extension_yaml|from_yaml if matrix_mxisd_configuration_extension_yaml|from_yaml is mapping else {} }}"
+
 # Holds the final mxisd configuration (a combination of the default and its extension).
 # You most likely don't need to touch this variable. Instead, see `matrix_mxisd_configuration_yaml`.
 matrix_mxisd_configuration: "{{ matrix_mxisd_configuration_yaml|from_yaml|combine(matrix_mxisd_configuration_extension, recursive=True) }}"