$ git clone -n https://src.fedoraproject.org/rpms/rust-async-lock.git /var/lib/mock/f39-build-2204414-51953/root/chroot_tmpdir/scmroot/rust-async-lock
Cloning into '/var/lib/mock/f39-build-2204414-51953/root/chroot_tmpdir/scmroot/rust-async-lock'...
$ git fetch origin 96584111f8611401e83dc64c2e386c35374ae8b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-async-lock
 * [new ref]         96584111f8611401e83dc64c2e386c35374ae8b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9658411 Update to version 3.2.0; Fixes RHBZ#2245932