$ git clone -n https://src.fedoraproject.org/rpms/rust-pem-rfc7468_0.7.git /var/lib/mock/f45-build-43771-805/root/chroot_tmpdir/scmroot/rust-pem-rfc7468_0.7
Cloning into '/var/lib/mock/f45-build-43771-805/root/chroot_tmpdir/scmroot/rust-pem-rfc7468_0.7'...
$ git fetch origin 6c55819fae48a6446f9827f39333b44d80a78525:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pem-rfc7468_0.7
 * [new ref]         6c55819fae48a6446f9827f39333b44d80a78525 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c55819 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild