[Bug 1917285] [NEW] paste works only if copying source twice when history count set to 1

[PascalC]

Public bug reported:

In order for keepass2 to work more securely, we have to set copy/paste
buffer history count to 1

If I set klipper to have an history count to one (see screen shot), then
the copy/paste behaviour is strange :

1. select something in a window with the mouse
2. do ctrl-c to copy
3. change window
4. try to paste

Nothing happens.

Do the same 1.2.3.4 again :  this time the paste works

In fact for each new string to copy, you have to do ctrl-c twice in
order for it to be pastable in another window.

Is this really the correct behaviour when copy/paste history count is
set to 1 ?

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: plasma-workspace 4:5.19.5-0ubuntu2
ProcVersionSignature: Ubuntu 5.8.0-45.51-generic 5.8.18
Uname: Linux 5.8.0-45-generic x86_64
ApportVersion: 2.20.11-0ubuntu50.5
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Mon Mar  1 06:53:14 2021
InstallationDate: Installed on 2019-06-02 (638 days ago)
InstallationMedia: Kubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
SourcePackage: plasma-workspace
UpgradeStatus: Upgraded to groovy on 2020-10-24 (128 days ago)

** Affects: plasma-workspace (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug groovy third-party-packages uec-images

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https://bugs.launchpad.net/bugs/1917285

Title:
  paste works only if copying source twice when history count set to 1

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