Don't crash if user.lastBatchStart is invalid
Don't crash if user.lastBatchStart is invalid

Discordius/Telescope,Discordius/Lesswrong2,Discordius/Lesswrong2,Discordius/Telescope,Discordius/Telescope,Discordius/Lesswrong2,Discordius/Telescope,Discordius/Lesswrong2