$ git clone -n https://src.fedoraproject.org/rpms/perl-Time-OlsonTZ-Download.git /var/lib/mock/f39-build-1439825-32287/root/chroot_tmpdir/scmroot/perl-Time-OlsonTZ-Download
Cloning into '/var/lib/mock/f39-build-1439825-32287/root/chroot_tmpdir/scmroot/perl-Time-OlsonTZ-Download'...
$ git fetch origin b7a0e59f7bc62be5a8bf2eb40d69570bfac7f272:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Time-OlsonTZ-Download
 * [new ref]         b7a0e59f7bc62be5a8bf2eb40d69570bfac7f272 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7a0e59 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild