Sometimes command outputs to preview window, other times echo'ed

[tlelson]

• [x] I have fzf 0.23.0 or above
• [x] I have read through https://github.com/junegunn/fzf.vim/blob/master/README.md
• [x] I have read through https://github.com/junegunn/fzf/blob/master/README-VIM.md
• [x] I have read through the manual page of fzf (man fzf)
• [x] I have searched through the existing issues

Detail

Sorry about the ambiguous title, its a hard issue to describe.

Basically if I execute :Git stash list the stash list is echoed out below the existing buffer however If i select the same command from the command history of :History:, the output is printed in the default vim preview window.

If i search previous commands with :History:, then instead of executing the command with an ENTER I hit Ctrl-e to edit first, in command mode, the output is echoed out as expected. Screenshots attached.

Expected Behaviour

Occurs:

• When executing the command directly
• When finding command via :History:, hiting Ctrl-e and finishing with ENTER
• before latest upgrade

Unexpected Behaviour

Step 1 Step 2

Occurs:

• When finding command via :History: and hitting ENTER directly

Versions

• Fedora 33
• vim-enhanced-2:8.2.2875-1.fc33.x86_64
• fzf-0.27.2-1.fc33.x86_64
• fzf.vim is at e34f6c1 from Tue May 25 13:30:41 2021 +0900

Here is a paired back vimrc that replicates the issue (on my system)

call plug#begin('~/.vim/plugged')
	Plug 'tpope/vim-fugitive'
	Plug 'junegunn/fzf', { 'do': './install --all'}
	Plug 'junegunn/fzf.vim', { 'depends': 'fzf'  }
call plug#end()

Any hints on this would be much appreciated, as is fzf and fzf.vim by the way. Thanks for sharing your work.