tlmgr update --self fails on 2019-04-07

[Bernhard Kleine]

K:\texlive\2019>tlmgr update --self
tlmgr.pl: package repository
http://ftp.cstug.cz/pub/tex/local/tlpretest/ (verified)
tlmgr.pl: saving backups to K:/texlive/2019/tlpkg/backups
tlmgr.pl: Preparing TeX Live infrastructure update...
tlmgr.pl: Backup option not implemented for infrastructure update.
DO NOT CLOSE THIS WINDOW!
TeX Live infrastructure update in progress ...
Detailed command logging to "K:\texlive\2019\temp\update-self.log"
failed self update: texlive.infra (50724 -> 50800) texlive.infra.win32
(50675 -> 50798)
Rolling back to previous version ...
failed self restore: texlive.infra (50724) texlive.infra.win32 (50675)
FATAL ERROR:
Infrastructure update failed and backup recovery failed too.
To repair your TeX Live installation download and run:
http://mirror.ctan.org/systems/texlive/tlnet/update-tlmgr-latest.exe


Kind regards

Bernhard

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