From 7e19b684263629998d9757a0a37341a1b46431aa Mon Sep 17 00:00:00 2001
From: Dmitry Maluka <dmitrymaluka@gmail.com>
Date: Thu, 13 Aug 2020 07:38:50 +0200
Subject: [PATCH] Avoid duplicate entries in history (#1822)

---
 internal/info/infobuffer.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/internal/info/infobuffer.go b/internal/info/infobuffer.go
index 6489232b..a3b4e368 100644
--- a/internal/info/infobuffer.go
+++ b/internal/info/infobuffer.go
@@ -145,6 +145,14 @@ func (i *InfoBuf) DonePrompt(canceled bool) {
 				i.PromptCallback(resp, false)
 				h := i.History[i.PromptType]
 				h[len(h)-1] = resp
+
+				// avoid duplicates
+				for j := len(h) - 2; j >= 0; j-- {
+					if h[j] == h[len(h)-1] {
+						i.History[i.PromptType] = append(h[:j], h[j+1:]...)
+						break
+					}
+				}
 			}
 			// i.PromptCallback = nil
 		}