bug: standalone "migrate" doesn't seem to enable maintenance mode

[ankush]

Based on this code, it seems it directly issues migrate. I am not entirely sure if this is handled somewhere else.

agent/agent/site.py

Lines 374 to 379 in 6ea14dd

	@step("Migrate Site")
	def migrate(self, skip_failing_patches=False):
	if skip_failing_patches:
	return self.bench_execute("migrate --skip-failing")
	else:
	return self.bench_execute("migrate")

This was fine before because patch and doctype schemas had their own ad-hoc maintenance mode that blocked writes. But that's going away now with frappe/frappe@8c7d6ab

Additionally, that ad-hoc maintenance mode only covers doctype schema and patches. So this bug needs to be fixed regardless of the linked PR.

[ankush]

@adityahase

[ankush]

@shadrak98 this is fairly simple to fix. Enable maintenance mode before, disable it after.

[shadrak98]

Seems to be fixed by frappe/press@734a076