no-pn NULL prefix

When ICECC is enabled:

ERROR: /build/../sources/poky/meta/recipes-core/meta/target-sdk-provides-dummy.bb: no-pn NULL prefix                                                        | ETA:  0:00:18
WARNING: /build/../sources/poky/meta/recipes-core/meta/target-sdk-provides-dummy.bb: Exception during build_dependencies for set_icecc_env
WARNING: /build/../sources/poky/meta/recipes-core/meta/target-sdk-provides-dummy.bb: Error during finalise of /build/../sources/poky/meta/recipes-core/meta/target-sdk-provides-dummy.bb
ERROR: Parsing halted due to errors, see error messages above
WARNING: /build/../sources/meta-openembedded/meta-python/recipes-core/images/meta-python-image-ptest.bb: Error during finalise of virtual:mcextend:python3-pyroute2:/build/../sources/meta-openembedded/meta-python/recipes-core/images/meta-python-image-ptest.bb

Workaround:

icecc support broken?

local.conf

BB_HASH_CODEPARSER_VALS:remove = "PN=no-pn"