$ git clone -n https://src.fedoraproject.org/rpms/bluebird.git /var/lib/mock/f42-build-3282376-41398/root/chroot_tmpdir/scmroot/bluebird
Cloning into '/var/lib/mock/f42-build-3282376-41398/root/chroot_tmpdir/scmroot/bluebird'...
$ git fetch origin ae4405e74c05a5904401387c33f789471402d888:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bluebird
 * [new ref]         ae4405e74c05a5904401387c33f789471402d888 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae4405e Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild