$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Base.git /var/lib/mock/f40-build-2631121-65744/root/chroot_tmpdir/scmroot/perl-Test-Base
Cloning into '/var/lib/mock/f40-build-2631121-65744/root/chroot_tmpdir/scmroot/perl-Test-Base'...
$ git fetch origin c53525ecd1c13a6f7981f5d4867356455742b515:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Base
 * [new ref]         c53525ecd1c13a6f7981f5d4867356455742b515 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c53525e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild