Possible log playback memory leak about gz-sim HOT 11 CLOSED

(blueprint)➜  sdformat8 valgrind --tool=memcheck --leak-check=full ./src/UNIT_Material_TEST 
==19839== Memcheck, a memory error detector
==19839== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==19839== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==19839== Command: ./src/UNIT_Material_TEST
==19839== 
Running main() from gtest_main.cc
[==========] Running 8 tests from 2 test cases.
[----------] Global test environment set-up.
[----------] 7 tests from DOMMaterial
[ RUN      ] DOMMaterial.Construction
[       OK ] DOMMaterial.Construction (10 ms)
[ RUN      ] DOMMaterial.MoveConstructor
[       OK ] DOMMaterial.MoveConstructor (6 ms)
[ RUN      ] DOMMaterial.CopyConstructor
[       OK ] DOMMaterial.CopyConstructor (5 ms)
[ RUN      ] DOMMaterial.AssignmentOperator
[       OK ] DOMMaterial.AssignmentOperator (4 ms)
[ RUN      ] DOMMaterial.MoveAssignmentOperator
[       OK ] DOMMaterial.MoveAssignmentOperator (5 ms)
[ RUN      ] DOMMaterial.Set
[       OK ] DOMMaterial.Set (16 ms)
[ RUN      ] DOMMaterial.InvalidSdf
[       OK ] DOMMaterial.InvalidSdf (6 ms)
[----------] 7 tests from DOMMaterial (56 ms total)

[----------] 1 test from DOMAtmosphere
[ RUN      ] DOMAtmosphere.CopyAssignmentAfterMove
[       OK ] DOMAtmosphere.CopyAssignmentAfterMove (2 ms)
[----------] 1 test from DOMAtmosphere (3 ms total)

[----------] Global test environment tear-down
[==========] 8 tests from 2 test cases ran. (74 ms total)
[  PASSED  ] 8 tests.
==19839== 
==19839== HEAP SUMMARY:
==19839==     in use at exit: 232 bytes in 1 blocks
==19839==   total heap usage: 3,564 allocs, 3,563 frees, 3,916,665 bytes allocated
==19839== 
==19839== 232 bytes in 1 blocks are definitely lost in loss record 1 of 1
==19839==    at 0x4C3017F: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==19839==    by 0x4EC5EDA: sdf::v8::Material::Material() (Material.cc:66)
==19839==    by 0x11D0FA: DOMMaterial_MoveAssignmentOperator_Test::TestBody() (Material_TEST.cc:143)
==19839==    by 0x14D029: HandleSehExceptionsInMethodIfSupported<testing::Test, void> (gtest.cc:2421)
==19839==    by 0x14D029: void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) (gtest.cc:2457)
==19839==    by 0x142E29: Run (gtest.cc:2495)
==19839==    by 0x142E29: testing::Test::Run() (gtest.cc:2486)
==19839==    by 0x142F77: Run (gtest.cc:2671)
==19839==    by 0x142F77: testing::TestInfo::Run() (gtest.cc:2645)
==19839==    by 0x143054: Run (gtest.cc:2789)
==19839==    by 0x143054: testing::TestCase::Run() (gtest.cc:2774)
==19839==    by 0x14357B: testing::internal::UnitTestImpl::RunAllTests() (gtest.cc:5051)
==19839==    by 0x14D539: HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool> (gtest.cc:2421)
==19839==    by 0x14D539: bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) (gtest.cc:2457)
==19839==    by 0x1436AB: testing::UnitTest::Run() (gtest.cc:4667)
==19839==    by 0x1194A8: RUN_ALL_TESTS (gtest.h:2329)
==19839==    by 0x1194A8: main (gtest_main.cc:37)
==19839== 
==19839== LEAK SUMMARY:
==19839==    definitely lost: 232 bytes in 1 blocks
==19839==    indirectly lost: 0 bytes in 0 blocks
==19839==      possibly lost: 0 bytes in 0 blocks
==19839==    still reachable: 0 bytes in 0 blocks
==19839==         suppressed: 0 bytes in 0 blocks
==19839== 
==19839== For counts of detected and suppressed errors, rerun with: -v
==19839== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)