fixed: bug with union variant fix #1088

Job	Run time
Set up	3s
Building on linux-amd64-wasmer	1m 11s
Building on linux-arm64-wasmer	11s
Building on linux-amd64-ovmwasm	55s
Building on darwin-arm64-wasmer	47s
Building on darwin-arm64-none	48s
Building on linux-arm64-ovmwasm	16s
Building on linux-arm64-none	13s
Building on darwin-amd64-wasmer	52s
Building on darwin-amd64-none	23s
Building on darwin-arm64-ovmwasm	39s
Building on darwin-amd64-ovmwasm	50s
Building on windows-amd64-	54s
Building on linux-amd64-none	18s
release	0s
	8m 20s

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