signal-composer getAllSignals test crashes binding

The signal-composer getAllSignals test crashes the binding when it is run after the agl-service-can-low-level tests, with the following backtrace:

Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: al-composer: ../json-c-0.13.1/json_object.c:189: json_object_put: Assertion `jso->_ref_count > 0' failed.
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: ERROR: Terminating signal 6 received: Aborted /usr/src/debug/af-binder/master+gitAUTOINC+1b6249810b-r0/git/src/sig-monitor.c:351,on_signal_terminate
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: ERROR: BACKTRACE due to signal Aborted/6:
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [1/23] /lib/libc.so.6(+0x2540f) [0x7f03ee38540f]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [2/23] /lib/libc.so.6(+0x338c2) [0x7f03ee3938c2]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [3/23] /usr/lib/libjson-c.so.4(+0x535a) [0x7f03ee90935a]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [4/23] /usr/lib/libjson-c.so.4(lh_table_free+0x29) [0x7f03ee90ec99]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [5/23] /usr/lib/libjson-c.so.4(+0x4f2d) [0x7f03ee908f2d]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [6/23] /usr/lib/libjson-c.so.4(json_object_put+0x36) [0x7f03ee909326]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [7/23] /usr/lib/libjson-c.so.4(array_list_free+0x24) [0x7f03ee908474]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [8/23] /usr/lib/libjson-c.so.4(+0x4f7d) [0x7f03ee908f7d]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [9/23] /usr/lib/libjson-c.so.4(json_object_put+0x36) [0x7f03ee909326]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [10/23] /usr/lib/libjson-c.so.4(lh_table_free+0x29) [0x7f03ee90ec99]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [11/23] /usr/lib/libjson-c.so.4(+0x4f2d) [0x7f03ee908f2d]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [12/23] /usr/lib/libjson-c.so.4(json_object_put+0x36) [0x7f03ee909326]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [13/23] afbd-signal-composer(afb_wsj1_reply_j+0x40) [0x564b6fa7f650]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [14/23] afbd-signal-composer(+0x322e1) [0x564b6fa7e2e1]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [15/23] /var/local/lib/afm/applications/signal-composer/lib/afb-signal-composer.so(+0x9f34) [0x7f03ede51f34]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [16/23] afbd-signal-composer(+0x345e7) [0x564b6fa805e7]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [17/23] afbd-signal-composer(+0x379de) [0x564b6fa839de]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [18/23] afbd-signal-composer(+0x35601) [0x564b6fa81601]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [19/23] afbd-signal-composer(+0x3582f) [0x564b6fa8182f]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [20/23] afbd-signal-composer(jobs_start+0x16e) [0x564b6fa8235e]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [21/23] afbd-signal-composer(main+0x1fb) [0x564b6fa6012b]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [22/23] /lib/libc.so.6(__libc_start_main+0xeb) [0x7f03ee386cdb]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: [23/23] afbd-signal-composer(_start+0x2a) [0x564b6fa6040a]
Sep 30 00:15:04 qemux86-64 afbd-signal-composer[918]: /usr/src/debug/af-binder/master+gitAUTOINC+1b6249810b-r0/git/src/sig-monitor.c:103,dumpstack
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