Below the results.
mailbox "fff" contains messages from gerrit (if it does matter)
Debugger entered--Lisp error: (invalid-read-syntax ". in wrong context")
read(#<buffer *nnimap dorsz.kjonca 143 *nntpd**-221904>)
nnimap-parse-flags(((3369 3370 1 "fff" "SELECT")))
nnimap-finish-retrieve-group-infos("dorsz.kjonca-ephemeral" (("nnimap+dorsz.kjonca:fff" 3 nil nil (nnimap "dorsz.kjonca-ephemeral" (nnimap-address "dorsz.kjonca") (nnimap-server-port 143) (nnimap-authenticator cram-md5) (nnimap-stream network)) ((quit-config #<buffer *Gnus Browse Server*> . browse)))) ((3369 3370 1 "fff" "SELECT")) t)
nnimap-request-group("fff" "dorsz.kjonca-ephemeral" t ("nnimap+dorsz.kjonca:fff" 3 nil nil (nnimap "dorsz.kjonca-ephemeral" (nnimap-address "dorsz.kjonca") (nnimap-server-port 143) (nnimap-authenticator cram-md5) (nnimap-stream network)) ((quit-config #<buffer *Gnus Browse Server*> . browse))))
gnus-request-group("nnimap+dorsz.kjonca:fff" t nil ("nnimap+dorsz.kjonca:fff" 3 nil nil (nnimap "dorsz.kjonca-ephemeral" (nnimap-address "dorsz.kjonca") (nnimap-server-port 143) (nnimap-authenticator cram-md5) (nnimap-stream network)) ((quit-config #<buffer *Gnus Browse Server*> . browse))))
gnus-select-newsgroup("nnimap+dorsz.kjonca:fff" t nil)
gnus-summary-read-group-1("nnimap+dorsz.kjonca:fff" t t nil nil nil)
gnus-summary-read-group("nnimap+dorsz.kjonca:fff" t t nil nil nil nil)
gnus-group-read-group(t t "nnimap+dorsz.kjonca:fff" nil)
gnus-group-read-ephemeral-group("nnimap+dorsz.kjonca:fff" (nnimap "dorsz.kjonca" (nnimap-server-port 143) (nnimap-authenticator cram-md5) (nnimap-stream network)) nil (#<buffer *Gnus Browse Server*> . browse) nil nil nil nil)
gnus-browse-read-group(no nil)
gnus-browse-select-group(nil)
funcall-interactively(gnus-browse-select-group nil)
call-interactively(gnus-browse-select-group nil nil)
command-execute(gnus-browse-select-group)
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