Control-W doesn't work when the completion drop-down is open

[jpalmer]

Description

When the completion list is open in insert mode, Control-W doesn't delete the current word

Reproduction guide

• Start Emacs
• Type enough to get the completion to pop up
• press Control W

Observed behaviour:
status line prints: "No location available"

Expected behaviour:
The most recent typed word is deleted

System Info

• OS: gnu/linux
• Emacs: 24.5.1
• Spacemacs: 0.105.21
• Spacemacs branch: master (rev. 0283f64)
• Graphic display: t
• Distribution: spacemacs
• Editing style: vim
• Completion: helm
• Layers:

(auto-completion emacs-lisp
                 (latex :variables latex-enable-auto-fill nil latex-enable-folding t)
                 extra-langs matlab)

Backtrace

No relevant backtrace

[TheBB]

#4243

Closing as duplicate. There's a workaround in there.