Recusive call of except branch in "yield from" crashes IronPython

See the following two examples. The only difference lie in except branch. test1.py can work well on IronPython. However,test2.py crashes IronPython.

test1.py

def foo():
    try:
        print(new)
        for i in range(100):
            yield i
    except:
        foo()

m = foo()
for i in m:
    print(i)

test2.py

def foo():
    try:
        print(new)
        for i in range(100):
            yield i
    except:
        yield from foo()

m = foo()
for i in m:
    print(i)

Crash Report:

....
in <5cd2739cd27844619789a1aa1ffdb0b0>:0
at IronPython.Hosting.PythonCommandLine.RunFileWorker (System.String fileName) [0x000e5] in <5cd2739cd27844619789a1aa1ffdb0b0>:0
at IronPython.Hosting.PythonCommandLine.RunFile (System.String fileName) [0x0000f] in <5cd2739cd27844619789a1aa1ffdb0b0>:0
at Microsoft.Scripting.Hosting.Shell.CommandLine.Run () [0x0003a] in <252827dbc7924637ba1c8c95b5f54810>:0
at IronPython.Hosting.PythonCommandLine.Run () [0x000d8] in <5cd2739cd27844619789a1aa1ffdb0b0>:0
at Microsoft.Scripting.Hosting.Shell.CommandLine.Run (Microsoft.Scripting.Hosting.ScriptEngine engine, Microsoft.Scripting.Hosting.Shell.IConsole console, Microsoft.Scripting.Hosting.Shell.ConsoleOptions options) [0x0003c] in <252827dbc7924637ba1c8c95b5f54810>:0
at Microsoft.Scripting.Hosting.Shell.ConsoleHost.RunCommandLine () [0x00053] in <252827dbc7924637ba1c8c95b5f54810>:0
at Microsoft.Scripting.Hosting.Shell.ConsoleHost.ExecuteInternal () [0x00051] in <252827dbc7924637ba1c8c95b5f54810>:0
at PythonConsoleHost.ExecuteInternal () [0x00025] in <9cafe2448f474c41b81ba0c1d71815eb>:0
at Microsoft.Scripting.Hosting.Shell.ConsoleHost.Execute () [0x00032] in <252827dbc7924637ba1c8c95b5f54810>:0
at Microsoft.Scripting.Hosting.Shell.ConsoleHost.Run (System.String[] args) [0x0015b] in <252827dbc7924637ba1c8c95b5f54810>:0
at PythonConsoleHost.Main (System.String[] args) [0x00020] in <9cafe2448f474c41b81ba0c1d71815eb>:0

System

IronPython 3.4.0a1 (3.4.0.0001)
[.NETFramework,Version=v4.6 on Mono 6.12.0.122 (64-bit)] on linux

Start by running the supplied test1.py and test2.py examples with IronPython 3.4.0a1 on Mono and compare their handling of the except branch. No repository file or test is named, so trace the yield from execution path after reproducing the crash. Done means test2.py no longer crashes while test1.py continues to work.