$ git clone -n https://src.fedoraproject.org/rpms/rust-tonic-prost.git /var/lib/mock/f45-build-45561-823/root/chroot_tmpdir/scmroot/rust-tonic-prost
Cloning into '/var/lib/mock/f45-build-45561-823/root/chroot_tmpdir/scmroot/rust-tonic-prost'...
$ git fetch origin 1a8a113cc183594cefd976dfeca446c0fed30fc1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tonic-prost
 * [new ref]         1a8a113cc183594cefd976dfeca446c0fed30fc1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1a8a113 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild