--- a/tests/test-evolve-issue5958.t	Tue Dec 10 19:27:55 2019 +0100
+++ b/tests/test-evolve-issue5958.t	Tue Dec 10 19:55:37 2019 +0100
@@ -157,3 +157,54 @@
   $ hg log -r . --hidden -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
   11 bb2424887202 1970-01-01 00:00 +0000: 
   11 bb2424887202 1969-12-31 23:59 +0000: (false !)
+
+date: updated one side to an newer value
+
+  $ hg update --hidden --rev 'predecessors(.)'
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  updated to hidden changeset 873d828420d8
+  (hidden revision '873d828420d8' was rewritten as: bb2424887202)
+  working directory parent is obsolete! (873d828420d8)
+  (use 'hg evolve' to update to its successor: bb2424887202)
+  $ hg amend --date "120 0"
+  2 new content-divergent changesets
+  $ hg log -G
+  @  changeset:   12:902e190ef559
+  |  tag:         tip
+  |  parent:      0:a24ed8ad918c
+  |  user:        test
+  |  date:        Thu Jan 01 00:02:00 1970 +0000
+  |  instability: content-divergent
+  |  summary:     add foo.txt
+  |
+  | *  changeset:   11:bb2424887202
+  |/   parent:      0:a24ed8ad918c
+  |    user:        test
+  |    date:        Thu Jan 01 00:00:00 1970 +0000
+  |    instability: content-divergent
+  |    summary:     add foo.txt
+  |
+  o  changeset:   0:a24ed8ad918c
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     add r0
+  
+  $ hg evolve --list -r .
+  902e190ef559: add foo.txt
+    content-divergent: bb2424887202 (draft) (precursor 873d828420d8)
+  
+  $ hg up bb2424887202
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ hg log -r 873d828420d8+bb2424887202+902e190ef559 --hidden -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
+  10 873d828420d8 1969-12-31 23:59 -0000: date-changed using evolve as 11:bb2424887202; date-changed using amend as 12:902e190ef559
+  11 bb2424887202 1970-01-01 00:00 +0000: 
+  12 902e190ef559 1970-01-01 00:02 +0000: 
+  $ hg evolve --content-divergent
+  merge:[11] add foo.txt
+  with: [12] add foo.txt
+  base: [10] add foo.txt
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  nothing changed
+  $ hg log -r . --hidden -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
+  11 bb2424887202 1970-01-01 00:00 +0000: 
+  13 bb2424887202 1970-01-01 00:02 +0000: (false !)