$ git clone -n https://src.fedoraproject.org/rpms/rust-euclid.git /var/lib/mock/f40-build-2662029-66876/root/chroot_tmpdir/scmroot/rust-euclid
Cloning into '/var/lib/mock/f40-build-2662029-66876/root/chroot_tmpdir/scmroot/rust-euclid'...
$ git fetch origin 1715d4e65cb755b6a923898cfe6403c2d335c9fc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-euclid
 * [new ref]         1715d4e65cb755b6a923898cfe6403c2d335c9fc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1715d4e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild