$ git clone -n https://src.fedoraproject.org/rpms/rust-semver.git /var/lib/mock/f40-build-2083650-49953/root/chroot_tmpdir/scmroot/rust-semver
Cloning into '/var/lib/mock/f40-build-2083650-49953/root/chroot_tmpdir/scmroot/rust-semver'...
$ git fetch origin 0b8e7bd7551e268f66127bc0c3416799f37a59c4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-semver
 * [new ref]         0b8e7bd7551e268f66127bc0c3416799f37a59c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0b8e7bd Update to version 1.0.20; Fixes RHBZ#2242959