FAPI: Fix authorization session handling. 3.2.x #1788

Job	Run time
scanbuild	11m 13s
build-test (ubuntu-18.04, gcc)	4m 14s
build-test (ubuntu-18.04, clang)	4m 15s
coverity-test	0s
build-test (ubuntu-20.04, gcc)	4m 25s
test-coverage	4m 19s
build-test (ubuntu-20.04, clang)	4m 0s
test-fuzz	2m 19s
build-test (fedora-32, gcc)	4m 48s
test-mbedtls	2m 46s
build-test (fedora-32, clang)	4m 34s
test-tcti-config	10m 22s
build-test (opensuse-leap, gcc)	4m 30s
build-test (opensuse-leap, clang)	4m 11s
	1h 5m 56s

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