$ git clone -n https://src.fedoraproject.org/rpms/rust-alsa-sys.git /var/lib/mock/f38-build-side-43-rust-devel-1417002-31458/root/chroot_tmpdir/scmroot/rust-alsa-sys
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1417002-31458/root/chroot_tmpdir/scmroot/rust-alsa-sys'...
$ git fetch origin 317b902bc8450ca05cffbd59289448d70d15688f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-alsa-sys
 * [new ref]         317b902bc8450ca05cffbd59289448d70d15688f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 317b902 Regenerate with rust2rpm 24; Fixes: RHBZ#2224956