Re: Test failure from commit 293eaf323a0e23184f86d55433c2805bc7501dc8

 > Commit 293eaf323a0e23184f86d55433c2805bc7501dc8 introduces the following
 > test failure:
 >
 > Display next command buffer in a new frame...
 > Composing main Info directory...
 > Composing main Info directory...done
 > Test tab-bar-tests-quit-restore-window backtrace:
 >    signal(ert-test-failed (((should (eq (length (frame-list)) 1)) :form
 >    ert-fail(((should (eq (length (frame-list)) 1)) :form (eq 2 1) :valu
 >    #f(compiled-function () #<bytecode -0x1d952653f8ed51e6>)()
 >    #f(compiled-function () #<bytecode -0x12725dc629b99eec>)()
 >    handler-bind-1(#f(compiled-function () #<bytecode -0x12725dc629b99ee
 >    ert--run-test-internal(#s(ert--test-execution-info :test #s(ert-test
 >    ert-run-test(#s(ert-test :name tab-bar-tests-quit-restore-window :do
 >    ert-run-or-rerun-test(#s(ert--stats :selector (not (or ... ... ...))
 >    ert-run-tests((not (or (tag :expensive-test) (tag :unstable) (tag :n
 >    ert-run-tests-batch((not (or (tag :expensive-test) (tag :unstable) (
 >    ert-run-tests-batch-and-exit((not (or (tag :expensive-test) (tag :un
 >    eval((ert-run-tests-batch-and-exit '(not (or (tag :expensive-test) (
 >    command-line-1(("-L" ":." "-l" "ert" "--eval" "(setq treesit-extra-l
 >    command-line()
 >    normal-top-level()
 > Test tab-bar-tests-quit-restore-window condition:
 >      (ert-test-failed
 >       ((should (eq (length ...) 1)) :form (eq 2 1) :value nil))
 >     FAILED  3/3  tab-bar-tests-quit-restore-window (0.018915 sec) at lisp/tab-bar-tests.el:54
 >
 > Ran 3 tests, 2 results as expected, 1 unexpected (2026-08-17 18:31:46+0100, 0.088351 sec)
 >
 > 1 unexpected results:
 >     FAILED  tab-bar-tests-quit-restore-window
 >
 > make[3]: *** [Makefile:185: lisp/tab-bar-tests.log] Error 1

Juri, can you help with this?  I don't grok the failure message.

Thanks, martin