$ git clone -n https://src.fedoraproject.org/rpms/rust-skim.git /var/lib/mock/f39-build-1665421-40744/root/chroot_tmpdir/scmroot/rust-skim
Cloning into '/var/lib/mock/f39-build-1665421-40744/root/chroot_tmpdir/scmroot/rust-skim'...
$ git fetch origin b772c0aa1e4e7261a5afc282851a1a0a8b7d6556:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-skim
 * [new ref]         b772c0aa1e4e7261a5afc282851a1a0a8b7d6556 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b772c0a Update to version 0.10.4; Fixes RHBZ#2138450