The unit will be started or restarted a few times during boot, but but it has StartLimitBurst = DefaultStartLimitBurst = 5, which means that the fifth restart will already fail. On my laptop, I have exactly 4 restarts, so I don't hit the limit, but on a slightly different system we will easily hit the limit. In https://bugzilla.redhat.com/show_bug.cgi?id=2251394, there are five reloads and we hit the limit. Since 6ef512c0bb7aeb2000588d7d05e23b4681da8657 we propagate the start counter over switch-root and daemon reloads, so it's easier to hit the limit during boot. In principle there might be systems with lots of vtcon devices, so let's just allow the unit to be restarted without a limit. Fixes https://bugzilla.redhat.com/show_bug.cgi?id=2251394.
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