$ git clone -n https://src.fedoraproject.org/rpms/rust-tiny-skia.git /var/lib/mock/f38-build-side-42-init-devel-1086441-30028/root/chroot_tmpdir/scmroot/rust-tiny-skia
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1086441-30028/root/chroot_tmpdir/scmroot/rust-tiny-skia'...
$ git fetch origin 23ab8071ed7c1fbe3a751145cb2595bcff605c63:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tiny-skia
 * [new ref]         23ab8071ed7c1fbe3a751145cb2595bcff605c63 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 23ab807 Update to 0.8.4