[bug #68572] Load unable to find mat file in subdirectory just after save

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URL:=0A  <https://savannah.gnu.org/bugs/?68572>=0A=0A                 Summa=
ry: Load unable to find mat file in subdirectory just=0Aafter save=0A      =
             Group: GNU Octave=0A               Submitter: athibaul=0A     =
          Submitted: Tue 28 Jul 2026 09:10:11 AM UTC=0A                Cate=
gory: Octave Function=0A                Severity: 3 - Normal=0A            =
    Priority: 5 - Normal=0A              Item Group: Unexpected Error or Wa=
rning=0A                  Status: None=0A             Assigned to: None=0A =
        Originator Name: Alexis THIBAULT=0A        Originator Email:=0A    =
         Open/Closed: Open=0A         Discussion Lock: Unlocked=0A         =
        Release: 11.3.0=0A        Operating System: Mac OS=0A           Fix=
ed Release: None=0A         Planned Release: None=0A=0A=0A    _____________=
__________________________________________=0A=0AFollow-up Comments:=0A=0A=
=0A-------------------------------------------------------=0ADate: Tue 28 J=
ul 2026 09:10:11 AM UTC By: Alexis THIBAULT <athibaul>=0AHere's a bug we fo=
und in octave 11.3.0 that involves loading a file soon after=0Acreating it.=
=0AUnder certain conditions, the file cannot be found.=0A=0AThe working dir=
ectory should contain an empty subdirectory subdir/ when=0Alaunching the sc=
ript.=0A=0A=0Afunction bug()=0A  addpath('./subdir');=0A  x =3D 1:10;=0A  s=
ave ('subdir/foo.mat','x');=0A  load foo x   % error: load: unable to find =
file foo=0Aend=0A=0A=0AThis bug does not appear when saving/loading from th=
e current directory=0A=0Afunction fine()=0A  x =3D 1:10;=0A  save ('foo.mat=
','x');=0A  load foo x  % loads fine=0Aend=0A=0A=0AThis issue does not appe=
ar if using 'which' or the interactive debugger, so we=0Asuspect this may b=
e due to an outdated index of some sort.=0A=0Afunction bug()=0A  addpath('.=
/subdir');=0A  x =3D 1:10;=0A  save ('subdir/foo.mat','x');=0A=0A  % The fi=
le is correctly created, and checking for its existence does not=0Aseem to =
influence whether 'load' finds it=0A  exist('subdir/foo.mat','file')=0A=0A =
 % uncommenting any of the following lines results in the file being found=
=0A  % which foo=0A  % keyboard=0A=0A  load foo x=0Aend=0A=0A=0A=0A=0A=0A=
=0A=0A=0A=0A=0A    _______________________________________________________=
=0A=0AReply to this item at:=0A=0A  <https://savannah.gnu.org/bugs/?68572>=
=0A=0A_______________________________________________=0AMessage sent via Sa=
vannah=0Ahttps://savannah.gnu.org/=0A
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