Infinite recursion when evaluating an expression which hits a breakpoint

int foo()
{
  return 42; // BREAK_HERE
}

int main()
{
  return 0; // BREAK_HERE
}

 --- token barrier ---
dNOTE: INFERIOR RUN REQUESTED
sRun requested...
dState changed from InferiorStopOk(14) to InferiorRunRequested(10) [master]
sStep next requested...
<167-exec-next

>167^running
dNOTE: INFERIOR RUN OK
sRunning.
dState changed from InferiorRunRequested(10) to InferiorRunOk(11) [master]
>*running,thread-id="1"
dNOTE: INFERIOR STILL RUNNING IN STATE InferiorRunOk.

>*stopped,reason="end-stepping-range",frame={addr="0x00401394",func="foo",args=[],file="main.cpp",fullname="D:\\Projects\\test\\main.cpp",line="12"},thread-id="1",stopped-threads="all"
dNOTE: INFERIOR SPONTANEOUS STOP
sStopped.
dState changed from InferiorRunOk(11) to InferiorStopOk(14) [master]
sStopped: "end-stepping-range"

<168-thread-info

>168^done,threads=[{id="1",target-id="Thread 10692.0x212c",frame={level="0",addr="0x00401394",func="foo",args=[],file="main.cpp",fullname="D:\\Projects\\test\\main.cpp",line="12"},state="stopped"}],current-thread-id="1"
<169-stack-list-frames 0 20


>169^done,stack=[frame={level="0",addr="0x00401394",func="foo",file="main.cpp",fullname="D:\\Projects\\test\\main.cpp",line="12"},frame={level="1",addr="0x0023fedf",func="<function called from gdb>"},frame={level="2",addr="0x00401394",func="foo",file="main.cpp",fullname="D:\\Projects\\test\\main.cpp",line="12"},frame={level="3",addr="0x0023feff",func="<function called from gdb>"},frame={level="4",addr="0x00401394",func="foo",file="main.cpp",fullname="D:\\Projects\\test\\main.cpp",line="12"},frame={level="5",addr="0x0023ff1f",func="<function called from gdb>"},frame={level="6",addr="0x00401394",func="foo",file="main.cpp",fullname="D:\\Projects\\test\\main.cpp",line="12"},frame={level="7",addr="0x0023ff3f",func="<function called from gdb>"},frame={level="8",addr="0x004013a1",func="main",file="main.cpp",fullname="D:\\Projects\\test\\main.cpp",line="16"}]
<170-stack-select-frame 0
<171bb options:fancy,autoderef,dyntype vars: expanded:return,local,watch,inspect typeformats:636861722a=1,73686f7274=1,756e7369676e656463686172=1 formats: watchers:666f6f28292377617463682e31
<172-data-list-register-values r


>170^done

>&"bb options:fancy,autoderef,dyntype vars: expanded:return,local,watch,inspect typeformats:636861722a=1,73686f7274=1,756e7369676e656463686172=1 formats: watchers:666f6f28292377617463682e31\n"
>=breakpoint-modified,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x0040138f",func="foo()",file="main.cpp",fullname="D:\\\\Projects\\\\test\\\\main.cpp",line="11",times="5",original-location="D:/Projects/test/main.cpp:11"}
>~"\nBreakpoint "
>~"1, foo () at main.cpp:11\n"
>~"11\t\treturn 42;\n"
>~"data=[,{iname=\"watch.1\",wname=\"Zm9vKCk=\",numchild=\"0\",type=\" \",value=\"<no such value>\",},],typeinfo=[]\n"
>171^done
dDISCARDING JUNK AT BEGIN OF RESPONSE: 
dBreakpoint 1, foo () at main.cpp:11
d11		return 42;
 <Rebuild Watchmodel 7>
sFinished retrieving data

>172^done,register-values=[...]