$ git clone -n https://src.fedoraproject.org/rpms/perl-AWS-Signature4.git /var/lib/mock/f39-build-1432964-31862/root/chroot_tmpdir/scmroot/perl-AWS-Signature4
Cloning into '/var/lib/mock/f39-build-1432964-31862/root/chroot_tmpdir/scmroot/perl-AWS-Signature4'...
$ git fetch origin f21341091be10c17f2176fa6bd6c05b20955f1ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-AWS-Signature4
 * [new ref]         f21341091be10c17f2176fa6bd6c05b20955f1ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f213410 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild