Bug boo#940837
Bug bsc#959299

That is do not escape the dollar character of a variable to allow
commands like `ls' to go further in its completion chain.

---
 bash-completion-2.12.0/bash_completion |   15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

--- bash-completion-2.12.0/bash_completion
+++ bash-completion-2.12.0/bash_completion	2024-02-23 08:10:16.777791836 +0000
@@ -2984,8 +2984,19 @@ _comp_compgen_commands()
 # @since 2.12
 _comp_complete_longopt()
 {
-    local cur prev words cword was_split comp_args
-    _comp_initialize -s -- "$@" || return
+    local cur=${COMP_WORDS[COMP_CWORD]}
+    local prev words cword was_split comp_args
+
+    if [[ "${cur:0:1}" == '$' ]] ; then
+        compopt -o dirnames +o filenames
+    else
+        compopt +o dirnames -o filenames
+    fi
+
+    _comp_initialize -s -- "$@" || {
+         _comp_compgen_dollar "$cur"
+        return
+    }
 
     case "${prev,,}" in
         --help | --usage | --version)