$ git clone -n https://src.fedoraproject.org/rpms/rust-gdk4-sys0.6.git /var/lib/mock/f38-build-side-43-rust-devel-1407691-31349/root/chroot_tmpdir/scmroot/rust-gdk4-sys0.6
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1407691-31349/root/chroot_tmpdir/scmroot/rust-gdk4-sys0.6'...
$ git fetch origin 45945f07ad941ad59ecb52d14afbfcbfc0aeb3bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gdk4-sys0.6
 * [new ref]         45945f07ad941ad59ecb52d14afbfcbfc0aeb3bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45945f0 Initial import (gdk4-sys 0.6 compat package)