$ git clone -n https://src.fedoraproject.org/rpms/bcrypt.git /var/lib/mock/f41-build-762782-13458/root/chroot_tmpdir/scmroot/bcrypt
Cloning into '/var/lib/mock/f41-build-762782-13458/root/chroot_tmpdir/scmroot/bcrypt'...
$ git fetch origin d1543b9e57b29018aa1caaebdb94a9cd8b994502:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bcrypt
 * [new ref]         d1543b9e57b29018aa1caaebdb94a9cd8b994502 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1543b9 Eliminate use of obsolete %patchN syntax (#2283636)