$ git clone -n https://src.fedoraproject.org/rpms/rust-crypto-common.git /var/lib/mock/f45-build-41067-779/root/chroot_tmpdir/scmroot/rust-crypto-common
Cloning into '/var/lib/mock/f45-build-41067-779/root/chroot_tmpdir/scmroot/rust-crypto-common'...
$ git fetch origin 8ba15c376f19e9b93e3dca3486b9d786ca0b1491:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-crypto-common
 * [new ref]         8ba15c376f19e9b93e3dca3486b9d786ca0b1491 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ba15c3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild