$ git clone -n https://src.fedoraproject.org/rpms/perl-String-Truncate.git /var/lib/mock/f40-build-2308445-57296/root/chroot_tmpdir/scmroot/perl-String-Truncate
Cloning into '/var/lib/mock/f40-build-2308445-57296/root/chroot_tmpdir/scmroot/perl-String-Truncate'...
$ git fetch origin 85fa64b18fd0d996049a2859e7e798979c2811ba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-String-Truncate
 * [new ref]         85fa64b18fd0d996049a2859e7e798979c2811ba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 85fa64b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild