Trying completion list of maxima_lib crashes Sage

[rws]

Hitting TAB after maxima_lib:

┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 8.0.beta0, Release Date: 2017-03-30               │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ Warning: this is a prerelease version, and it may be unstable.     ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
sage: from sage.interfaces.maxima_lib import maxima_lib
sage: maxima_lib.
Building Maxima command completion list (this takes
a few seconds only the first time you do it).
To force rebuild later, delete /home/ralf/.sage//maxima_commandlist_cache.sobj.
A
;;;
;;; Stack overflow.
;;; Jumping to the outermost toplevel prompt
;;;


Internal or unrecoverable error in:

;;;
;;; No frame to jump to
;;; Aborting ECL
;;;

;;; ECL C Backtrace
;;; /home/ralf/sage/local/lib/libecl.so.16.1(si_dump_c_backtrace+0x26) [0x7f012]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(ecl_internal_error+0x3f) [0x7f0127]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(FEerror+0) [0x7f0127706f20]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(+0x1adb1a) [0x7f012772eb1a]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(+0x12b3c5) [0x7f01276ac3c5]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(cl_funcall+0x70) [0x7f01276e7c90]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(si_serror+0xd9) [0x7f0127708299]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(ecl_cs_overflow+0xac) [0x7f012772e]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(+0x12b3c5) [0x7f01276ac3c5]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(cl_funcall+0x70) [0x7f01276e7c90]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(si_serror+0xd9) [0x7f0127708299]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(ecl_cs_overflow+0xac) [0x7f012772e]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(ecl_interpret+0x1d67) [0x7f01276ea]
;;; /home/ralf/sage/local/lib/libecl.so.16.1(cl_apply+0x145) [0x7f01276e7e95]
;;; /home/ralf/sage/local/lib/python2.7/site-packages/sage/libs/ecl.so(+0xcf1d)]
;;; /home/ralf/sage/local/lib/python2.7/site-packages/sage/libs/ecl.so(+0x15511]
;;; /home/ralf/sage/local/lib/python2.7/site-packages/sage/libs/ecl.so(+0x15d6b]
;;; /home/ralf/sage/local/lib/python2.7/site-packages/sage/libs/ecl.so(+0x16d47]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(+0xc0c7f) [0x7f038ea92c7f]
;;; /home/ralf/sage/local/lib/python2.7/site-packages/sage/libs/ecl.so(+0xcad8)]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(PyObject_Call+0x43) [0x7f038e]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x56da) [0]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x81c) [0x7]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x8020) [0]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x81c) [0x7]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x8020) [0]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x81c) [0x7]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x8020) [0]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x81c) [0x7]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x8020) [0]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x81c) [0x7]
;;; /home/ralf/sage/local/lib/libpython2.7.so.1.0(+0x87ecc) [0x7f038ea59ecc]
Aborted (core dumped)