$ git clone -n https://src.fedoraproject.org/rpms/rust-interpolate_name.git /var/lib/mock/f40-build-2082525-49847/root/chroot_tmpdir/scmroot/rust-interpolate_name
Cloning into '/var/lib/mock/f40-build-2082525-49847/root/chroot_tmpdir/scmroot/rust-interpolate_name'...
$ git fetch origin 06fe74a2392ab76edb78979ff98b649e75462da3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-interpolate_name
 * [new ref]         06fe74a2392ab76edb78979ff98b649e75462da3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 06fe74a Update to version 0.2.4; Fixes RHBZ#2238575