[MC-32701] Command block minecarts lose their name after re-log - Jira

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Type: Bug
Status: Open
Resolution: Unresolved
Affects Version/s: Minecraft 13w39a, Minecraft 13w39b, Minecraft 1.7.4, Minecraft 14w05b, Minecraft 14w06b, Minecraft 14w07a, Minecraft 14w08a, Minecraft 1.7.5, Minecraft 14w20b, Minecraft 14w21a, Minecraft 14w21b, Minecraft 1.8, Minecraft 1.8.1-pre3, Minecraft 1.9 Pre-Release 2, Minecraft 16w42a, Minecraft 1.11.2, Minecraft 1.12.1, Minecraft 1.12.2, Minecraft 18w02a, Minecraft 18w22c, Minecraft 1.13-pre6, Minecraft 1.13, Minecraft 18w31a, Minecraft 1.13.1, 1.14.4, 1.15 Pre-release 1, 20w21a, 1.16.1, 20w29a, 1.16.2 Pre-release 3, 1.16.2, 1.16.3 Release Candidate 1, 1.16.3, 1.16.4, 20w46a, 20w51a, 21w03a, 21w05b, 21w06a, 21w07a
Fix Version/s: None
Labels:
- command_block_minecart

Minecarts with command block don't output their default or customized name after re-log.

Rename a command block minecart item

/give @s command_block_minecart{display:{Name:"\"test\""}}

Code analysis by [Mod] Marcono1234 can be found in this comment.

is duplicated by

MC-54777 When I rename a minecart command block, place it and leave my game in single player, the minecart name becomes @ when I come back

MC-56132 CommandBlockMinecarts when renamed act weirdly

MC-136611 Minecart with Command Block changing its name

relates to

MC-121903 Command block minecarts do not save execution cooldown to NBT

MC-41893 Breaking a minecart with command block in creative drops a minecart after reloading the world