$ git clone -n https://src.fedoraproject.org/rpms/rust-semver.git /var/lib/mock/f39-build-2189114-51411/root/chroot_tmpdir/scmroot/rust-semver
Cloning into '/var/lib/mock/f39-build-2189114-51411/root/chroot_tmpdir/scmroot/rust-semver'...
$ git fetch origin 1ff7a225754ca1ae927ca39e5a65b0aea272e312:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-semver
 * [new ref]         1ff7a225754ca1ae927ca39e5a65b0aea272e312 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ff7a22 Update to version 1.0.21; Fixes RHBZ#2256496