$ git describe
r3.5.12-4-gdfc7ec9adb

When I tab to autocomplete my collection named "collection" in my database, the shell throws the following exception:
exception during autocomplete: "invalid 'in' operand o._proto_"

Following is a copy and paste of my mongo shell session (note I press TAB after typing in "col" to have it autocomplete to "collection")

[gulsef@localhost mongo]$ ./mongo
MongoDB shell version v3.5.12-4-gdfc7ec9adb
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.5.12-4-gdfc7ec9adb
Mongo-Hacker 0.0.14
Server has startup warnings:
2017-08-22T11:10:22.201+0100 I STORAGE [initandlisten]
2017-08-22T11:10:22.202+0100 I STORAGE [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine
2017-08-22T11:10:22.202+0100 I STORAGE [initandlisten] ** See http://dochub.mongodb.org/core/prodnotes-filesystem
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten]
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten] ** NOTE: This is a development version (3.5.12-4-gdfc7ec9adb) of MongoDB.
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten] ** Not recommended for production.
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten]
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database.
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted.
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten]
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten] ** WARNING: This server is bound to localhost.
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten] ** Remote systems will be unable to connect to this server.
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten] ** Start the server with --bind_ip <address> to specify which IP
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten] ** addresses it should serve responses from, or with --bind_ip_all to
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten] ** bind to all interfaces. If this behavior is desired, start the
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten] ** server with --bind_ip 127.0.0.1 to disable this warning.
2017-08-22T11:10:22.251+0100 I CONTROL [initandlisten]
2017-08-22T11:20:44.294+0100 E QUERY [thread1] uncaught exception: don't know how to show [automationNotices]
localhost(mongod-3.5.12-4-gdfc7ec9adb) test> use decimal
switched to db decimal
localhost(mongod-3.5.12-4-gdfc7ec9adb) decimal> db.colexception during autocomplete: "invalid 'in' operand o._proto_"

Also note the "[thread1] uncaught exception: don't know how to show [automationNotices]" in the logs. Possibly related?