From b3a32809e974f018cd1d11fa0ecd2631eab804ce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20Rowlands=20=28=EB=B3=80=EA=B8=B0=ED=98=B8=29?=
 <peter@pmrowla.com>
Date: Thu, 25 Feb 2021 14:41:56 +0900
Subject: [PATCH] exp show: fix bug where already collected exp results could
 be dropped (#5517)

---
 dvc/repo/experiments/show.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dvc/repo/experiments/show.py b/dvc/repo/experiments/show.py
index 6a2556b69..39ac7e66d 100644
--- a/dvc/repo/experiments/show.py
+++ b/dvc/repo/experiments/show.py
@@ -66,7 +66,8 @@ def _collect_experiment_branch(res, repo, branch, baseline, **kwargs):
                 exp.update(collected_exp)
         else:
             exp = collected_exp
-        res[rev] = exp
+        if rev not in res:
+            res[rev] = exp
         prev = rev
     if len(revs) > 1:
         res[prev]["checkpoint_parent"] = baseline