Fix read request length on BP5 Local arrays with operators (backport to release 2.10) #4321

Job	Run time
git_checks	8s
format	29s
windows (win2019, serial)	11m 22s
windows (win2019, ompi)	12m 58s
CodeQL (cpp)	22m 44s
docker (ubuntu-bionic)	7m 48s
windows (win2022, serial)	8m 41s
linux_el8 (el8, icc, mpich)	24m 52s
windows (win2022, ompi)	13m 24s
linux_el8 (el8, oneapi, mpich)	22m 31s
linux_ubuntu (ubuntu20.04, gcc8, shared, mpich)	15m 5s
macos (macos11, serial)	20m 37s
linux_ubuntu (ubuntu20.04, gcc9, shared, mpich)	18m 4s
macos (macos12, serial)	4m 56s
linux_ubuntu (ubuntu20.04, gcc10, shared, mpich)	17m 37s
linux_ubuntu (ubuntu20.04, gcc11, shared, mpich)	16m 40s
linux_ubuntu (ubuntu20.04, clang6, shared, mpich)	10m 25s
linux_ubuntu (ubuntu20.04, clang10, shared, mpich)	14m 8s
linux_ubuntu (ubuntu20.04, gcc8, ompi)	33m 23s
linux_ubuntu (ubuntu20.04, gcc8, serial)	9m 4s
linux_ubuntu (ubuntu20.04, clang6, ompi)	33m 22s
linux_ubuntu (ubuntu20.04, clang6, serial)	7m 23s
linux_ubuntu (ubuntu20.04, gcc8, static, ompi, build_only)	4m 44s
linux_ubuntu (ubuntu20.04, clang6, static, ompi, build_only)	4m 30s
linux_ubuntu (ubuntu20.04, gcc8, static, serial)	7m 19s
contract (examples)	2m 40s
contract (lammps)	4m 8s
contract (tau)	10m 54s
build_and_test	1s
	5h 59m 57s

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