Error detected while processing function nerdtree#ui_glue#invokeKeyMap

[scrawld]

Self-Diagnosis

• I have searched the issues for an answer to my question.
• I have reviewed the NERDTree documentation. :h NERDTree
• I have reviewed the Wiki.
• I have searched the web for an answer to my question.

Environment (for bug reports)

• Operating System: Ubuntu 18.04.2 LTS
• Vim/Neovim version :echo v:version: 800
• NERDTree version, found on 1st line in NERDTree quickhelp ?: NERDTree (6.7.5) quickhelp
• vimrc settings
  My Vimrc: https://github.com/scrawld/vimrc/blob/master/.vimrc
  • I've verified the issue occurs with only NERDTree installed.

Steps to Reproduce the Issue

1. This error occurs when you modify a file without saving it and then press s through NERD_tree

Current Result (Include screenshots where appropriate.)

With version 6.6.1 there is no such problem.
This problem only appeared after the update today.


Error detected while processing function nerdtree#ui_glue#invokeKeyMap[1]..80[33]..79[3]..<SNR>30_openVSplit[1]..109[1]..125[3]..181[6]..182[17]..16:
line    1:
E37: No write since last change (add ! to override)
Press ENTER or type command to continue
```

Expected Result

Normal open