Merge pull request #437 from mtconnect/419_uuid_unavailable_when_changed #281

Job	Run time
MacOS Latest, Shared: True	31m 31s
Ubuntu Latest, Shared: True	18m 2s
MacOS Latest, Shared: False	31m 54s
Windows 2019 Arch: x86, Shared: False	26m 24s
Ubuntu Latest, Shared: False	18m 7s
Windows 2019 Arch: amd64, Shared: True	33m 41s
Windows 2019 Arch: amd64, Shared: False	32m 35s
	3h 12m 14s

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