$ git clone -n https://src.fedoraproject.org/rpms/fish.git /var/lib/mock/f40-build-789954-136170/root/chroot_tmpdir/scmroot/fish
Cloning into '/var/lib/mock/f40-build-789954-136170/root/chroot_tmpdir/scmroot/fish'...
$ git fetch origin 670d2cd9f6aa8067e6c55158e23e57a62bed4e90:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fish
 * [new ref]         670d2cd9f6aa8067e6c55158e23e57a62bed4e90 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 670d2cd Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild