$ git clone -n https://src.fedoraproject.org/rpms/rust-serdect.git /var/lib/mock/f45-build-44869-818/root/chroot_tmpdir/scmroot/rust-serdect
Cloning into '/var/lib/mock/f45-build-44869-818/root/chroot_tmpdir/scmroot/rust-serdect'...
$ git fetch origin 0e2d8b5130b531f90e8ab885231b46068c853038:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-serdect
 * [new ref]         0e2d8b5130b531f90e8ab885231b46068c853038 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0e2d8b5 Update to version 0.4.3; Fixes RHBZ#2335943