ConEmu can corrupt "Set up environment variables, cmd.exe aliases, codepage"

[m0n]

Versions

ConEmu build: 180131 x64
OS version: Windows 10 LTSB x64

Steps to reproduce

1. expand Environment by these lines:
   #this is line 1
   #this is line 2
   #this is line 3
   #this is line 4
2. Save, exit, start ConEmu
3. delete "#this is line 2"
4. Save, exit, start ConEmu
5. Environment looks like:

set PATH=%ConEmuBaseDir%\Scripts;%PATH%
#this is line 1
#this is line 3
#this is line 4
#this is line 4

6. delete last 2 lines
7. Save, exit, start ConEmu
8. Environment looks like:

set PATH=%ConEmuBaseDir%\Scripts;%PATH%
#this is line 1
#this is line 3
<<SPACE>>
#this is line 4

[m0n]

Sorry Maximus5, I did transformed this issue into another one as I realised that original issue was wrong.

If You follow my instructions You will face the bug presents in 180131.