bug#49043: 27.1: ibuffer-toggle-filter-group [BUGFIX]

[Michael Albinus]

Stephen Berman <stephen.berman@gmx.net> writes:

Hi Steve,

> I do.  It's the result of an error being raised in Tramp.  Here's the
> recipe (reliably reproducible on
>
> GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.29,
> cairo version 1.17.4) of 2021-06-06 built on strobelfs 
> Repository revision: 218d2d1509673d8bc67014558a31f5d0da1be5c6
> Repository branch: master
> Windowing system distributor 'The X.Org Foundation', version 11.0.12011000
> Configured using: 'configure --with-native-compilation 'CFLAGS=-Og -g3''
> Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS
> GSETTINGS HARFBUZZ JPEG LCMS2 LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP
> NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF
> TOOLKIT_SCROLL_BARS X11 XDBE XIM XPM GTK3 ZLIB
> ):
>
> 0. emacs -Q
> 1. Create a nonempty ZIP file test.zip (content is irrelevant).
> 2. Visit the directory containing test.zip in Dired.
> 3. Type `M-x load-library RET dired-x RET'.
> 4. With point on the Dired line containing test.zip type `M-!', which
>    prompts with "! on test.zip {3 guesses} [unzip]:" and type RET to
>    execute unzip (this of course requires having the unzip program).
> 5. With point still on the test.zip line type `D' and at the prompt `y'
>    to delete the ZIP file.
> => This raises a file-error (see below), but the ZIP file is deleted.
> 6. Type `M-x ibuffer'.
> => This raises the error "tramp-error: Method ‘archive’ is not known."
> 7. In the *Ibuffer* buffer type `g'.
> => This raises the error "ibuffer-current-state-list: Args out of range:
>    #<buffer *Ibuffer*>, 280, 332". 

Thanks for this. Apparently, it is the same error as bug#49030, I'll
merge both. A fix will follow soon, pls check whether it works for you.

> Steve Berman

Best regards, Michael.