$ git clone -n https://src.fedoraproject.org/rpms/rust-selectors0.24.git /var/lib/mock/f39-build-1967130-43296/root/chroot_tmpdir/scmroot/rust-selectors0.24
Cloning into '/var/lib/mock/f39-build-1967130-43296/root/chroot_tmpdir/scmroot/rust-selectors0.24'...
$ git fetch origin 841e780330990882f1449b4850e5ac501a6604ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-selectors0.24
 * [new ref]         841e780330990882f1449b4850e5ac501a6604ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 841e780 Initial import (selectors 0.24 compat package)