Viewing or editing a file containing line 'exit' kills the terminal

[vitaliy-guliy]

Trying to view or edit a text file containing line 'exit' leads to closing the terminal.

Reproduction Steps:

1. Create a project and a text file with line 'exit'
2. Open a terminal and run Midnight commander
3. Go to the text file and press F3 or F4

Expected behavior:

The file must be opened for edit or view.

Observed behavior:

The terminal is closed.

Che version: 4.6.0-SNAPSHOT
OS and version: Linux Mint 17.1 64 bit
Docker version: 1.10.3
Che install: server (zip)

Additional information:

• Problem can be reliably reproduced, doesn't happen randomly: Yes

depends on #1518

[vitaliy-guliy]

[sixtyeight]

even simpler to reproduce, just enter echo exitin the shell.

Version : 4.4.2
Revision : c3e34e105dcb86a3
Build Time :2016-07-06 08:16:23

[JamesDrummond]

@eivantsov Can we assign this to someone yet?

[AndrienkoAleksandr]

Original issue description is not actual. Actual bug(for 5.0.0-M9-SNAPSHOT): terminal should be closed, when user typed "exit" (if terminal has no background processes which can catch it).