$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Timer.git /var/lib/mock/f39-build-1435210-31977/root/chroot_tmpdir/scmroot/perl-Test-Timer
Cloning into '/var/lib/mock/f39-build-1435210-31977/root/chroot_tmpdir/scmroot/perl-Test-Timer'...
$ git fetch origin 067daed25133b7213c681e3f2a22f41f0c4968cf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Timer
 * [new ref]         067daed25133b7213c681e3f2a22f41f0c4968cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 067daed Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild