$ git clone -n https://src.fedoraproject.org/rpms/perl-Tapper.git /var/lib/mock/f40-build-2021053-46684/root/chroot_tmpdir/scmroot/perl-Tapper
Cloning into '/var/lib/mock/f40-build-2021053-46684/root/chroot_tmpdir/scmroot/perl-Tapper'...
$ git fetch origin f6efe2209c3f9b17545c35a0f4dd64198ee87bf0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Tapper
 * [new ref]         f6efe2209c3f9b17545c35a0f4dd64198ee87bf0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6efe22 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild