$ git clone -n https://src.fedoraproject.org/rpms/rust-tokio-tungstenite.git /var/lib/mock/f38-build-side-43-rust-devel-1400976-31154/root/chroot_tmpdir/scmroot/rust-tokio-tungstenite
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1400976-31154/root/chroot_tmpdir/scmroot/rust-tokio-tungstenite'...
$ git fetch origin fc560df675d72df14a535a7a8d4956eafecf46ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tokio-tungstenite
 * [new ref]         fc560df675d72df14a535a7a8d4956eafecf46ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc560df Update to version 0.20.1; Fixes RHBZ#2203844