test

Add new fixture test for edge case #6096

Job	Run time
package	23s
build (windows-py39-unittestextras)	48s
build (windows-py39-pluggy)	47s
build (windows-py39-xdist)	1m 34s
build (windows-py310)	1m 31s
build (windows-py311)	1m 36s
build (windows-py312)	1m 33s
build (windows-py313)	1m 34s
build (ubuntu-py39-lsof-numpy-pexpect)	1m 44s
build (ubuntu-py39-pluggy)	1m 44s
build (ubuntu-py39-freeze)	41s
build (ubuntu-py39-xdist)	1m 44s
build (ubuntu-py310-xdist)	1m 43s
build (ubuntu-py311)	1m 42s
build (ubuntu-py312)	1m 43s
build (ubuntu-py313-pexpect)	1m 43s
build (ubuntu-pypy3-xdist)	1m 44s
build (macos-py39)	1m 48s
build (macos-py310)	1m 47s
build (macos-py312)	1m 46s
build (macos-py313)	1m 48s
build (doctesting)	43s
build (plugins)	51s
check	1s
	32m 58s

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