WinSCP : Assertion failed: RtlTestBit(&Heap->FreeHintBitmap, HintIndex)

Using : reactos-bootcd-0.4.15-dev-4946-ge9a129c-x86-gcc-lin-dbg and WinSCP 5.2.1.2

Follow procedure to have the error window as per CORE-18331

Click on "Report" and ReactOS asserts and kdb opens

• • • Assertion failed: RtlTestBit(&Heap->FreeHintBitmap, HintIndex)
    • Source File: /srv/buildbot/worker_data/Build_GCCLin_x86/build/sdk/lib/rtl/heap.c, line 435

see logs