memleak when using PATH

one of the tests for memleaks had been passing with the previous version ksh-20120801-256.el9 but fails with the new ksh-1.0.0~beta.1-2.el9

Filed from caserun https://tcms.engineering.redhat.com/run/422031/#caserun_27370827

Version-Release number of selected component (if applicable):
RHEL-9.0.0-20211121.7

Steps to Reproduce:
run the test /CoreOS/ksh/Regression/memleaks

Actual results:
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: repr_PATH.sh
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

:: [ 19:19:00 ] :: [ LOG ] :: Running repr_PATH.sh
:: [ 19:19:00 ] :: [ BEGIN ] :: Running the reproducer repr_PATH.sh :: actually running 'ksh93 repr_PATH.sh > repr.log'
:: [ 19:21:29 ] :: [ PASS ] :: Running the reproducer repr_PATH.sh (Expected 0, got 0)
total kB 10112 5632 1088
...
total kB 15424 11008 6464
total kB 15488 11072 6528
:: [ 19:21:29 ] :: [ FAIL ] :: Kbytes shall not grow beyond acceptable variation (Assert: "13092" should be >= "15488")

Expected results:
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: repr_PATH.sh
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

:: [ 01:37:58 ] :: [ LOG ] :: Running repr_PATH.sh
:: [ 01:37:58 ] :: [ BEGIN ] :: Running the reproducer repr_PATH.sh :: actually running 'ksh93 repr_PATH.sh > repr.log'
:: [ 01:40:24 ] :: [ PASS ] :: Running the reproducer repr_PATH.sh (Expected 0, got 0)
total kB 10560 5760 1216
...
total kB 10560 5760 1216
total kB 10560 5824 1280
:: [ 01:40:24 ] :: [ PASS ] :: Kbytes shall not grow beyond acceptable variation (Assert: "10660" should be >= "10560")