connection queue abort still causing error?

[soichih]

I am still seeing occasional ss2 crash

app-mrtrix3-preproc service requested
1> Wed Feb 14 2018 04:19:55 GMT+0000 (UTC) - ^[[34mdebug^[[39m: opening new ssh connection for resource: 5943cd40055b490021abb7b6
1> Wed Feb 14 2018 04:19:56 GMT+0000 (UTC) - ^[[34mdebug^[[39m: ssh connection ready for resource: 5943cd40055b490021abb7b6
1> Wed Feb 14 2018 04:19:56 GMT+0000 (UTC) - ^[[34mdebug^[[39m: piping tar output to user
TypeError: Cannot read property 'state' of undefined
    at IncomingMessage.Channel.close (/app/node_modules/ssh2/lib/Channel.js:307:15)
    at emitNone (events.js:86:13)
    at IncomingMessage.emit (events.js:185:7)
    at abortIncoming (_http_server.js:282:11)
    at Socket.socketOnEnd (_http_server.js:434:7)
    at emitNone (events.js:91:20)
    at Socket.emit (events.js:185:7)
    at endReadableNT (_stream_readable.js:974:12)
    at _combinedTickCallback (internal/process/next_tick.js:80:11)
    at process._tickDomainCallback (internal/process/next_tick.js:128:9)
1> Wed Feb 14 2018 04:19:57 GMT+0000 (UTC) - ^[[31merror^[[39m: Wed, 14 Feb 2018 04:19:57 GMT uncaughtException: Cannot read property 'state' of undefined
1> Wed Feb 14 2018 04:19:57 GMT+0000 (UTC) - ^[[31merror^[[39m: TypeError: Cannot read property 'state' of undefined
    at IncomingMessage.Channel.close (/app/node_modules/ssh2/lib/Channel.js:307:15)
    at emitNone (events.js:86:13)
    at IncomingMessage.emit (events.js:185:7)
    at abortIncoming (_http_server.js:282:11)
    at Socket.socketOnEnd (_http_server.js:434:7)
    at emitNone (events.js:91:20)
    at Socket.emit (events.js:185:7)
    at endReadableNT (_stream_readable.js:974:12)
    at _combinedTickCallback (internal/process/next_tick.js:80:11)
    at process._tickDomainCallback (internal/process/next_tick.js:128:9)
1> Wed Feb 14 2018 04:23:38 GMT+0000 (UTC) - ^[[34mdebug^[[39m:  0=_sca.5a83b9c8af5aa9002a303fd0.5a83b9cacd041300347d2020, name=brainlife.view 5a81647bdc4031003b8b36fe, status=waiting, msg=soichih/sca-product-raw service requested
1> Wed Feb 14 2018 04:35:28 GMT+0000 (UTC) - ^[[34mdebug^[[39m: streaming file via sftp /mnt/share1/prod/5a83b7d9cd041300347d201d/5a83b7dacd041300347d201e/slurm-2494.err
1> Wed Feb 14 2018 04:35:28 GMT+0000 (UTC) - ^[[34mdebug^[[39m: mimetype:null

I thought my patch to ssh2 connection pool library might fix this, but I need to investigate.