$ git clone -n https://src.fedoraproject.org/rpms/rust-insta.git /var/lib/mock/f39-build-1526441-36066/root/chroot_tmpdir/scmroot/rust-insta
Cloning into '/var/lib/mock/f39-build-1526441-36066/root/chroot_tmpdir/scmroot/rust-insta'...
$ git fetch origin c78a1910ae3a11c0c72c58fecdf94e7e5f0dc76f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-insta
 * [new ref]         c78a1910ae3a11c0c72c58fecdf94e7e5f0dc76f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c78a191 Update to version 1.34.0; Fixes RHBZ#2241130