$ git clone -n https://src.fedoraproject.org/rpms/perl-XString.git /var/lib/mock/f39-build-1439859-32292/root/chroot_tmpdir/scmroot/perl-XString
Cloning into '/var/lib/mock/f39-build-1439859-32292/root/chroot_tmpdir/scmroot/perl-XString'...
$ git fetch origin e3a72494eb84affc0bb74dd63bb2c6b5dcdc59ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XString
 * [new ref]         e3a72494eb84affc0bb74dd63bb2c6b5dcdc59ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e3a7249 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild