diff --git a/changelog.d/20230106_163518_regis_fix_example_com_links.md b/changelog.d/20230106_163518_regis_fix_example_com_links.md
new file mode 100644
index 0000000000..3af3848d01
--- /dev/null
+++ b/changelog.d/20230106_163518_regis_fix_example_com_links.md
@@ -0,0 +1 @@
+- 💥[Bugfix] Fix "example.com" links in registration emails. This is a breaking change for platforms that have modified the "id" field of the LMS site object in the database. These platforms should set `SITE_ID=1` in the common settings via a plugin. (by @regisb)
diff --git a/changelog.d/20230109_134927_regis_fix_tinymce_formatting.md b/changelog.d/20230109_134927_regis_fix_tinymce_formatting.md
new file mode 100644
index 0000000000..36854c8068
--- /dev/null
+++ b/changelog.d/20230109_134927_regis_fix_tinymce_formatting.md
@@ -0,0 +1 @@
+- [Bugfix] Fix HTML component editing in studio by cherry-picking [upstream fix](https://github.com/openedx/edx-platform/pull/31500). (by @regisb)
diff --git a/changelog.d/20230117_165024_regis_cors_whitelist.md b/changelog.d/20230117_165024_regis_cors_whitelist.md
new file mode 100644
index 0000000000..caea8adfc7
--- /dev/null
+++ b/changelog.d/20230117_165024_regis_cors_whitelist.md
@@ -0,0 +1 @@
+- [Improvement] Resolve `CORS_ORIGIN_WHITELIST` warnings that pollute the LMS and CMS logs. As far as we know they were not causing any issue, apart from being a nuisance. (by @regisb)
diff --git a/tutor/templates/apps/openedx/settings/cms/production.py b/tutor/templates/apps/openedx/settings/cms/production.py
index d09456e34d..03cae79b09 100644
--- a/tutor/templates/apps/openedx/settings/cms/production.py
+++ b/tutor/templates/apps/openedx/settings/cms/production.py
@@ -8,6 +8,7 @@
     ENV_TOKENS.get("CMS_BASE"),
     "cms",
 ]
+CORS_ORIGIN_WHITELIST.append("{% if ENABLE_HTTPS %}https{% else %}http{% endif %}://{{ CMS_HOST }}")
 
 # Authentication
 SOCIAL_AUTH_EDX_OAUTH2_KEY = "{{ CMS_OAUTH2_KEY_SSO }}"
diff --git a/tutor/templates/apps/openedx/settings/lms/production.py b/tutor/templates/apps/openedx/settings/lms/production.py
index b859b5feb7..6c2793b3bc 100644
--- a/tutor/templates/apps/openedx/settings/lms/production.py
+++ b/tutor/templates/apps/openedx/settings/lms/production.py
@@ -9,6 +9,7 @@
     FEATURES["PREVIEW_LMS_BASE"],
     "lms",
 ]
+CORS_ORIGIN_WHITELIST.append("{% if ENABLE_HTTPS %}https{% else %}http{% endif %}://{{ LMS_HOST }}")
 
 {% if ENABLE_HTTPS %}
 # Properly set the "secure" attribute on session/csrf cookies. This is required in
diff --git a/tutor/templates/apps/openedx/settings/partials/common_all.py b/tutor/templates/apps/openedx/settings/partials/common_all.py
index fb39fa8a9d..f23c8e1430 100644
--- a/tutor/templates/apps/openedx/settings/partials/common_all.py
+++ b/tutor/templates/apps/openedx/settings/partials/common_all.py
@@ -78,6 +78,10 @@
     },
 }
 
+# The default Django contrib site is the one associated to the LMS domain name. 1 is
+# usually "example.com", so it's the next available integer.
+SITE_ID = 2
+
 # Contact addresses
 CONTACT_MAILING_ADDRESS = "{{ PLATFORM_NAME }} - {% if ENABLE_HTTPS %}https{% else %}http{% endif %}://{{ LMS_HOST }}"
 DEFAULT_FROM_EMAIL = ENV_TOKENS.get("DEFAULT_FROM_EMAIL", ENV_TOKENS["CONTACT_EMAIL"])
diff --git a/tutor/templates/build/openedx/Dockerfile b/tutor/templates/build/openedx/Dockerfile
index a1ba493803..2ee7c50123 100644
--- a/tutor/templates/build/openedx/Dockerfile
+++ b/tutor/templates/build/openedx/Dockerfile
@@ -42,8 +42,12 @@ WORKDIR /openedx/edx-platform
 RUN git config --global user.email "tutor@overhang.io" \
   && git config --global user.name "Tutor"
 
+{%- if patch("openedx-dockerfile-git-patches-default") %}
 # Custom edx-platform patches
 {{ patch("openedx-dockerfile-git-patches-default") }}
+{%- else %}
+# Patch edx-platform
+{%- endif %}
 
 {# Example: RUN curl -fsSL https://github.com/openedx/edx-platform/commit/<GITSHA1> | git am #}
 {{ patch("openedx-dockerfile-post-git-checkout") }}