fix: commit after app install

Since we destroy the connection after app installation,
mariadb implicitly rollsback the transaction hence committing upon successfull
app installation to prevent data sync loss

frappe/commands/site.py

@@ -420,6 +420,9 @@ def install_app(context, apps, force=False):
 				print(f"An error occurred while installing {app}{err_msg}")
 				exit_code = 1
 
+		if not exit_code:
+			frappe.db.commit()
+
 		frappe.destroy()
 
 	sys.exit(exit_code)

frappe/utils/fixtures.py

@@ -25,8 +25,6 @@ def sync_fixtures(app=None):
 
 	frappe.flags.in_fixtures = False
 
-	frappe.db.commit()
-
 
 def import_custom_scripts(app):
 	"""Import custom scripts from `[app]/fixtures/custom_scripts`"""