$ git clone -n https://src.fedoraproject.org/rpms/rust-cargo-credential.git /var/lib/mock/f40-build-1780528-24818/root/chroot_tmpdir/scmroot/rust-cargo-credential
Cloning into '/var/lib/mock/f40-build-1780528-24818/root/chroot_tmpdir/scmroot/rust-cargo-credential'...
$ git fetch origin df656c016291c15f8affb422806eb9d23fbd131c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cargo-credential
 * [new ref]         df656c016291c15f8affb422806eb9d23fbd131c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df656c0 Update to version 0.4.5; Fixes RHBZ#2292639