$ git clone -n https://src.fedoraproject.org/rpms/rust-image.git /var/lib/mock/f38-build-side-43-rust-devel-1403813-31199/root/chroot_tmpdir/scmroot/rust-image
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1403813-31199/root/chroot_tmpdir/scmroot/rust-image'...
$ git fetch origin a01ef15add92fed86317eaa4e116a797d8022d67:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-image
 * [new ref]         a01ef15add92fed86317eaa4e116a797d8022d67 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a01ef15 Enable qoi support now that rust-qoi is packaged in Fedora